st. pauli girl, sounds like he can't help it. btdt ourselves. My advice - either leave an extra set of clothes in the car as elh suggested or pack the extra set of clothes in YOUR bag. He is not doing this on purpose. As our OT explained to us, some of these sensory issues are equivalent to fingernails scraping a chalkboard for these kids. Just realize that it is the way it is for now, and that it will most likely get better, as it has for our DS. (Still doesn't like wet clothes, but they don't have to be changed immediately, and sometimes they're even tolerated.)