I exchanged jeans once, but it was in high school.
Matter of fact, we did evolve differently...
One became a business owner, another a lawyer and alas the third has passed on to her final reward.
That's interesting - I had a roommate in college who was trying to get his jeans to evolve. Basically, all his clothes went in a giant pile on the floor of the closet, apparently in hopes that they would evolve bacterial cultures that would eventually walk themselves to the laundry and jump in the wash on their own. He had a lot of clothes, and was able to keep this up for some time.
I finally persuaded him to wash them himself by pointing out that any culture that evolved to the point of being able to wash the jeans for him was unlikely to be self-destructive enough to actually go through with it...