I like it, even though I agree it's too much copy & paste.
I've never seen a reaction to a serial sneezer like that in real life.

I hardly ever seem to witness sneezing fits in the first place, but when (rarely) someone I'm communicating with sneezes more than twice, I don't say any more but try to give a sympathetic smile or something like that. Other people's reactions I witness after someone's second or third sneeze are like "Awwww!" or "Heyeyeyey!" or "THAT's some cold!" or "I know how you feel!" while I slowly die...

(It doesn't happen too often though.)