Yuck, I wouldn't get a slice.
I still don't understand the whole debate about pineapple on pizza, though. Personally, it's not my thing, but some people ate pineapple on pizza for 50 years without a word and suddenly BAM! Out of nowhere it's a big debate and you must take a side.
You see things like chicken, broccoli and sweetcorn on pizza these days -- I've never tried any of these, because, well, they don't seem like they belong on pizza to me. If you like it, then go for it.
When I went to Italy I noticed that sliced potato was a huge favourite pizza topping among Italians. Doesn't seem like it belongs on pizza to me, but who am I to argue? Italians invented pizza, they can put whatever they wish on them.