There was a Liberal incident in 1984 where John Turner patted Iona Campagnola's rear-end and then offered a public apology later on. It's certainly not something you do -- but the Liberal's would be hyper-sensitive to it, given the potential to gain political capital. Seeing that the company was selling jeans to shape/lift your butt, the whole thing was nothing more than a planned (one eyebrow raised) marketing ploy.