a bard kicks in your door and quickly put on a belt on you. The belt makes your beard grow very very fast. As a matter of fact, it is already a foot long before he runs out the doors again and disappear

Here are the rules. Each time you take an action, the beard will grow. The only way you can get it to stop is to find the bard and have him remove it

The longer your beard becomes, the harder it is to take actions