Doggone mad.

Simon says not to leave your pooch parked outside in hot weather.

MSNBC’s Scoop column (http://msnbc.msn.com/id/14153946/) reveals that PETA recently completed filming a commercial with American Idol judge Simon Cowell, who categorically applied the same disgust potential contestants often receive to animal owners who mistreat their canine companions by leaving them locked up in parked cars on sweltering summer days.

"Far be it from me to be critical, but I find it really appalling that, this year, thousands of dogs will die of heatstroke inside parked cars," he says in the commercial, accompanied by his own dog, Claude. Paula Abdul, however, is another story entirely.