Minister resigns after underwear dance

Why do politicians get caught doing things their middle support base would never be caught doing ? Imagine the career and public image of a politician who is evicted from office for dancing in his underwear at a parliamentary office party ? Dancing in his underwear ? And why was he forced to resign ? Because he had lied about it and his leader had no choice but to ask him to leave because of the initial denial:

An Australian state government minister was forced to quit following reports that he danced in his underwear at a parliamentary office party, the state premier said Thursday. Matt Brown resigned late Wednesday, only three days after he was sworn in as police minister of Australia's most populous state, New South Wales Premier Nathan Rees said.
Rees said he demanded Brown's resignation Wednesday night because the former lawyer and university lecturer -- a state lawmaker for nine years -- initially gave assurances that "absolutely nothing untoward" had happened during the party. "I subsequently put it to former minister Brown late last night that there are too many reports of you in your underwear for me to ignore," Rees told Fairfax Radio Network. "He conceded he'd been in his underwear and that gave me no option but to demand his resignation."

Such a situation is incredible gossip mill for journalists, and such a news is even covered by serious media (and not only the tabloid press); it would have been very embarrassing for both the minister and his leader, the Premier.