I got 24 I think but I did it in sixth grade so I can’t remember that well.
I prided myself on it at school because I had the highest number, the average being around 10 to 15. My friend got 11 before spitting them all out.
(There were safety concerns though. Especially after I swallowed three large grapes and my throat was swollen, but I was totally worth it, because you’re a loser if you don’t eat them and you waste food you could’ve eaten.)
