It seems kind of rude to ask a random parent whether their 4-year-old child is a boy or a girl.

It's certainly rude to ask that question, then call the parent a liar, and stuff your hand down the 4-year-old's pants to check for yourself -- which is exactly what police say 59-year-old Linna Croft did recently at a Phoenix bus stop.

According to court documents obtained by New Times, the boy's mother said they were at a bus stop near Central Avenue and Buckeye Road when Croft asked, "Is that a boy or a girl?"

She responded by saying he's a boy.

While the woman was looking down the street for the bus, Croft declared, "You're a liar," and when the boy's mother looked back, she saw Croft's hands "waist deep into her son's pants," according to the documents.

The woman said she knew Croft was touching her son under his underwear because she could see his bare skin down there.

The woman told police she pulled back her son, but Croft tried to get back into the little boy's pants, according to the documents.

The boy's mother, who's also pregnant again, was able to get away from Croft and call 911. Police note that Croft didn't go quietly, and "reasonable force" had to be used to arrest her.

The boy was later forensically interviewed, and told the interview that Croft did touch his penis.

Croft -- who has a history of arrests for trespassing, extreme DUI, forgery, assault, theft, and more -- didn't admit to the crime, and instead invoked her right to speak with an attorney.

She was booked into jail on charges of molestation, attempted molestation, and resisting arrest.

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Follow Matthew Hendley on Twitter at @MatthewHendley.