My old Chevy had a bench seat and I did that one time with my 80 year old grandfather next to me - I was 16. We were going about 30 mph, I hit the lever and the seat went back then I panicked and the seat flew forward as I stepped on the brake. Didn't use seat belts in those days... Well gramps and I were fine, but he had a serious talk with my dad before he would ride with me again... something like "that damned kid almost killed us..." For some reason I sort of chuckle about it now.

DS
87 300D