epicthundercatDon't forget to wash up!
pipi1234Thumbs are in the wrong way is they wanted to depict a person in front of a washing basin.
This is definitely on purpose.
While I agree with your conclusion, stick your hands under the water palms up and see which way your thumbs point.
Unless the picture depicts someone washing their hands and dick in a sink, though in that case it’s the arms that are wrong.