Hypothetically, I would consider the person a queer. At some point before insertion there would have to be some clue. I think you would know if you were hitting an asshole instead of a vagina. A vagina is pre-lubed. What ever happened to feeling the tits. And surely they stuck their hands down this dude boxers and felt a set of hairy balls with a pole.
Yes, the person is a queer. And should damn sure drink only at home