It was my first DAS lesson on a ER5, in a very cold wet mid February and I was frozen solid, the school supplied gloves were not up to much thermally and towards the end of the lesson I kept getting barked over the one way intercom "Cancel you indicators!" and all I could do was to wail and sniff like a 10 year old though a snotty nose to myself "I'm trying but I can't! My fingers won't work!" as I tried stabbing at the button.
Anyway, scene set and so to the embarrassing bit, got back to the center, swung the side stand down but unknowingly to me it had pinged back and I just gracefully tipped all the way over, right in front of my friend on the other ER5, the instructor and about 10 characters who had just spilled out of the CBT classroom! Scrabbled furiously out from under the bike and lifted it clean up in one go as if nothing had happened in the ridiculous hope that no one had noticed the huge crash and yelp. My instructor just looked, turned to the CBT crew and said nothing more than "And as has just been kindly demonstrated for us, side stands can swing back so always do a visual check".
Haven't been so embarrassed for quite some time, and put my back out for 2 days to boot.