I've just found another idiot that has blocked me. She answered this question, thanks for exposing another coward. :)
Her answer has been deleted, so I must have been right. :)
Their feet are designed not to get caught up. But spiders can get caught up in their own webs if they lose their footing and fall over into it. But you will not see that very often.
spiders don't come in contact with their own webs, they have small hairs on the tips of their legs, that's what prevents them from sticking. plus, they clean themselves on a regular basis