First off, check to see what type of Bailiffs (some have lots more powers to remove stuff) they are, second NEVER let them in (some have powers to enter without permission). Third off, they can only take good from the person who owns the debt (but you have to PROVE who owns what). YES they can take you tools, they can even take the clothes off of your back if they like, but most don't).
If the son owns so much, there are ways around writing off most of the debt.