What is...... worse burping in public or farting in public?

I really think the worst scenario will be farting so loud in the public omg! I can't picture myself doing that it is so annoying and I will so speechless enough to find right word for it lol! Burping is human and it can have so many reason and it will not made me blush that much if that happen to me but farting is real a no!no!no! lol!