I have my own timetable for what I feel is acceptable or not. At some point I'll leave if nothing happens. But I'm gonna bitch about it every day. The best thing that happens is that it doesn't affect the price. The worst that happens is people listen to me and hammer the bid.
I'm checking the board a few times a week for news (and making the odd comment or two), but generally ignoring the stock until something happens, or doesn't.