New bloke likes to knock stuff over if he gets slightly angry or feels under pressure or put out.
For example, if we're walking along and discussing something and he sees a plant pot on a wall, he'll tip it so it falls. Or push bin bags over so they block a path. Or tip newspapers off stands in a shop.
It's like a pouty petulance. Just arsehole behaviour I think. Never seen anything like ie before.
He's a nutter, isn't he?
Or AIBU