No wonder Paul Simon doesn’t get along with Art Garfunkel. At the recent Rock & Roll Hall of Fame 25th anniversary concert, Garfunkel supposedly threw a backstage hissy fit when a staffer couldn’t instantly produce a tissue for his nose. Offered a paper towel, Garfunkel screamed, “I said a tissue!” — and threw it back, RadarOnline reports. The tale sounds plausible in light of his cranky behavior last March. Reading poetry at a show at the Turning Stone Resort & Casino in upstate Verona, Garfunkel stopped twice because a developmentally challenged person in the front row was making noise. Finally, he said, “I’m as sympathetic as anyone to the handicapped, but I’m trying to do a show.” A minder pushed the wheelchair-bound person out of the theater, leaving some in the audience feeling like they should have walked out, too.