Disabled scientist Professor Stephen Hawking’s decision to make a second cameo appearance in The Simpsons has angered his wife. The forthcoming episode of the TV cartoon show will feature electro-convulsive shock therapy (ECT) being used to treat schizophrenia, a plot device Elaine Hawking thinks shouldn’t be used in an animated comedy. She says, “I’m not altogether happy with it. I just don’t think that ECT’s the sort of thing that anybody should make fun out of – it’s just not right for comedy. “I read the scripts and obviously told Stephen of my concerns, but he thinks it’s fine, so I’ll have to go along with that.” The episode is expected to air some time in 2005.