I saw him at the Landmark Theater in Syracuse in the 1980's. I had never heard the F word used so many times in one evening.

There were some souvenir tee shirts on sale. I didn't buy since they were rather obscene. One tee shirt had the F. U. phrase on it. I thought to myself, "Where the hell would I wear a shirt like that?" The public address announcer, before George Carlin came on stage, read to the audience everything that was on the 4 tee shirts. Just hearing him say the F.U. phrase through the intercom, made me laugh myself silly.