For such a bold title, this survey from goo Ranking into what embarrassing experiences made people wish a hole would come and swallow them up produced, on the whole, rather tame answers.
Over the 25th and 26th of November 2011 1,074 members of the goo Research online monitor group completed a private internet-based questionnaire. 57.4% of the sample were female, 11.6% in their teens, 14.7% in their twenties, 26.9% in their thirties, 25.0% in their forties, 11.1% in their fifties, and 10.7% aged sixty or older. Note that the score in the results refers to the relative number of votes for each option, not a percentage of the total sample.
I quite regularly talk to myself in the office and the corridors, but I either don’t care or just do a cough to cover it up. I often snore and sometimes drool on trains, but what the heck, I’m asleep so I don’t care!