I suppose it started when he was 2 and we would ignore his tantrums (he's always been quite an "angry" child and nothing we said seemed to make any difference so seemed best to leave him to it). The tantrum sometimes stopped when he wet himself and I offered to help clean him up. Doesn't happen very often but he is now 3.5 and he does it when he doesn't get his own way - like tonight I wanted to see who had won celebrity masterchef so wasn't giving him my full attention! [I never watch TV while ds1 and ds2 are around normally - just don't get a chance!] I think he'll grow out of it so I'm not too worried just wondered if anyone else had experienced this.