Just to lend weight to Noclevername's post: it was known in 1965 exactly what happens to someone who is briskly decompressed while wearing a spacesuit. It carries a very high risk of death if you try it on your own (you have about 10 seconds in which to reassemble and repressurize your suit before you lose consciousness) and there would be absolutely no point in conducting the experiment under such uncontrolled conditions anyway.

Grant Hutchison