For example, whenever he called upon his villeins to perform a bene, the lord was required to provide either food, drink, money, or all three. These occasions therefore took on the character of social gatherings of which another feature was the "sporting chance" - an opportunity for villeins to compete for prizes like a bundle of hay or a sheep for roasting. The lord was also obligated during times of attack to take in his villeins inside his castle walls for their protection. The lord likewise owed protection to his vassals. According to the Gieses:
An important reciprocal obligation of
every lord toward his vassals … was that
of defending them when they were
accused in other courts - for example,
in those of the Church. (p. 49)
As well, the lord was beholden to a standard of behaviour laid down centuries earlier during the time of Charlemagne, namely that he not try to kill or wound his vassal, not rob his of part of his land, not make him a villein, not rape or seduce his wife or daughter, and not fail to defend him as required.

jannagnoelle.com
For example, whenever he called upon his villeins to perform a bene, the lord was required to provide either food, drink, money, or all three. These occasions therefore took on the character of social gatherings of which another feature was the "sporting chance" - an opportunity for villeins to compete for prizes like a bundle of hay or a sheep for roasting. The lord was also obligated during times of attack to take in his villeins inside his castle walls for their protection. The lord likewise owed protection to his vassals. According to the Gieses: An important reciprocal obligation of every lord toward his vassals … was that of defending them when they were accused in other courts - for example, in those of the Church. (p. 49) As well, the lord was beholden to a standard of behaviour laid down centuries earlier during the time of Charlemagne, namely that he not try to kill or wound his vassal, not rob his of part of his land, not make him a villein, not rape or seduce his wife or daughter, and not fail to defend him as required. jannagnoelle.com
Additional liabilities of the villein included the following:
• He had to pay a fee (merchet) when his daughter got
married
• When he succeeded his father, he paid both relief and
heriot, which was usually the best beast of the
deceased's flock
• He couldn't leave his land or sell his livestock without
the lord's permission
• During times of crisis, he was required to leave off
farming his own land to instead work the lord's above
and beyond his usual week's work (known as "boons"
or benes)
• He wasn't protected by the royal courts, instead
subject to his lord and the manor courts without
recourse
Additional liabilities of the villein included the following: • He had to pay a fee (merchet) when his daughter got married • When he succeeded his father, he paid both relief and heriot, which was usually the best beast of the deceased's flock • He couldn't leave his land or sell his livestock without the lord's permission • During times of crisis, he was required to leave off farming his own land to instead work the lord's above and beyond his usual week's work (known as "boons" or benes) • He wasn't protected by the royal courts, instead subject to his lord and the manor courts without recourse
They go to explain that this work included everything from
plowing, mowing hay, reaping, shocking and transporting
grain, threshing and winnowing, and washing and shearing the lord's sheep, and that,
By the thirteenth century labor services
were often commuted into money
payments. But in cash or kind,
approximately half of all the villein's
efforts ultimately went, in one way or
another, to the lord's profit. (p. 154)
Image of medieval art depicting Villeins reaping, from the Luttrell Psalter (c.1320-1340, Lincolnshire,
England)

jannagnoelle.com
They go to explain that this work included everything from plowing, mowing hay, reaping, shocking and transporting grain, threshing and winnowing, and washing and shearing the lord's sheep, and that, By the thirteenth century labor services were often commuted into money payments. But in cash or kind, approximately half of all the villein's efforts ultimately went, in one way or another, to the lord's profit. (p. 154) Image of medieval art depicting Villeins reaping, from the Luttrell Psalter (c.1320-1340, Lincolnshire, England) jannagnoelle.com