What is the worst thing that happened to you in gd?

For me, it was when i was playing retro circles. i was really consistant, but a 96% run killed my consistancy completely. i couldnt even reach the wave part anymore, so i decided to play from a start pos and got 11-100 first try. but when i got back on the level from zero, my consistancy was gone once again, so i played from a start pos again and got 5-100 after only a few attempts. if i wouldnt have beaten it the same day, i would have destroyed my phone.