That doesn't sound silly at all!! I'm sure we've all BTDT with jeans that unzip themselves!! And putting them out of the dryer, that's always a major win for me, too.
Oh, that is not silly at all!! I remember when mine would unzip when I sat down and I was in denial and thought, "wow, these jeans are soooo poorly made."
The first time it happened I assumed that they were broken. They I didn't wear them because I hated doing discrete zipper checks. Now I'm feeling pretty cheerful wearing them