Separated Shoulder?
Yeah... I don't buy that one could just separate and rejoin his shoulder on cue while in a straight jacket. I'm sure Houdini could escape them, but I'm willing to bet that's not how he did it.
I know this wasn't completely factual and I'm okay with that, but the straight jacket part seemed really over the top IMO.
If you don't want to be spoiled, you shouldn't be here in the first place.