Regarding blindfolds, a few years ago a horse being loaded into stalls with a blindfold dumped the jockey (or jockey may have already dismounted for loading, I can’t recall) and got loose from handler. I believe it was at Doncaster. Horse ran through plastic rails and across centre of corse, unable to see properly – blinds stayed put. There were advertising hoardings and the like about and it was awful. Incredibly, and thankfully, the horse missed everything and was OK.
(Sorry Caps Lock!) I THINK THE BLINDFOLD DESIGN WAS aLTERED A BIT AFTER THAT, AND THEY DO SEEM TO FALL OFF A BIT EASIER, AND BE EASIER TO PULL off when necessary.
I think American stalls are larger BTW.