In another installment of Late Night Hashtags on "Late Night with Jimmy Fallon," Fallon presented the best tweets using the hashtag he suggested, #WorstSummerVacation.
Now that we've officially entered summer, it's easy to anticipate some great vacations while forgetting about all the downsides. Fallon's viewers submitted some truly horrendous summer vacation moments, from ill-timed waterpark sickness to new friends who just want to pretend to be cats.
What are your own #WorstSummerVacation memories? Leave in the comments or tweet at us.