Kind of a jerk move, but it's not against the rules. The game gives you 3 minutes to decide on your roll (or whatever it actually is) and if he wanted to use all 3 minuets that time, that's his prerogative. Glad it worked out for you in the end.

Frankly I think it's a valid albeit annoying "strategy" if you really want an item. LOL. Trying to get impatient people to waive their right to roll.