Replying to Kicked the fuck out

me and 2 other kids were trying to get into a 21+ show. the youngest looking had a fake ID. Me and the other kid go in first no problem, then they ask the other kid for his id. he shows his shitty fake ass id and gets it taken away and so im sort of looking over there and see that he's leaving so the door man sees that I am his friend and askes me for an id and I say I dont have one so he crosses out the stamp on my hand and kicks me out as well. The other kid sees that I got kicked out and doesnt want to stay for the show by himself and so he comes out. Me and him cant resell our tix, oh well $12 down the drain....

any ideas how to not get caught next time?