I believe that there is humour throughout his work (including videos! ) Let us post here humourus instances of Mike's music and videos (or even interviews or anything...) It can be the playing of some instrument, not necessarily the lyrics, or his behaviour in concerts or anything as I said previously.
I begin with the music video from "Crime of Passion" and how Mike behaves/looks/is dressed on it.
I laughed at that dumb Knebworth joke where Pete Acock gets carried away with the solo and has to be carried off stage. Just after the bit where Mike on his break inflicts 'guess who' upon Pierre Moerlen who is still hard at work.