Everything about that is wrong - you don't excuse grabbing someone's package as 'dumb'; you don't excuse stuffing your thumb up someone's bum as 'fooling around'; you don't presume everything's ok because your club lawyer (of all people) questioned the victim. Otherwise, you can just have a good old fooling around grope of anyone you know anywhere you want as long as you laugh about it - on the bus, in an elevator with workmates, at the self-serve checkout at Woolies, anywhere. Tough if the recipient objects, it's all in fun hey.
Sure, there's a lot of things about the world I don't get, but wanting to stuff your thumb up another bloke's bum has to top the list.
