"Are you joking? Mayo is an abomination to the clean, simple flavour of tuna rice".He wouldn't accept the argument. :p
(That actually makes sense, if you're going on the more clean & smooth side of tuna rice. Sometimes we all need something plain... Hm, I understand ya now, kind human!)
buoew, someoews I'd likeow someow moreow flavours... meow meow... (Sad cat noises)
Haha... Try to convince him to get some kewpie mayo next time...