I definitely don't put mayo on them, reminds me of the horror when I went to Brazil.
The family I was staying with made pizza one day and they brought out some condiments, mayo was one of them and I just assumed they brought everything because who knows what I would like. But then they proceeded to squirt mayo on their slices and I gasped. Luckily I had stashed a bottle of hot sauce from earlier so I used some of that and they were shocked that I would eat 'super spicy' sauce, it was like tobasco so definitely not spicy, I guess everyone is different. We also brought them hot cheetos as a little gift for the kids and they were rinsing their mouths out in the sink. We thought they were just messing around but the kids insisted it was spicy