Never a tantrum but I've thrown my racket into the net on a few occasions and shouted at myself quite loudly a couple of times. I hate to tell you this but I sometimes take a while between serves
, it's got nothing to do with the opponent though.
When I play darts however.... there have been some tantrums (and a cracked computer screen in rage
) but none recently, not since early 2007 I'd say.