Do you wash your new jeans before wearing them?

i use too have a phobia for this so i use wash all my new clothes before wearing them just because i know other people try them on... yuck! and im not ashamed to say i buy wal mart jeans sometimes lol aint nothing wrong wit wal mart clothes however there other clothes are tasteless so i dont buy other clothes for there just jeans but i do like being thier tank-tops and sweatpants to sleep in lol