Joint decision? I think not!! I'm pretty sure you were all "oh it's Adam Sandler it's got to be good" and I was all "I'm sunburnt, pick a movie so I can go lie on ice", and then BOOM you took away over 2 hrs of my life that I will never get back. It's sad really.
I can back up Beo's assessment of "Punch Drunk Love", and would just like to take a moment to THANK HIM hugely for sharing / forcing that experience with me / on me.