Spray sunscreen has 78.9% alcohol. At camp my friend dared me to chug the rest of his bottle of sunscreen and I was drunk as hell. The type of alcohol in it is like SD 40 or something and its not meant for drinking and Ive heard it is very toxic. Also some of the other ingredients in listerine or sunscreen might be harmfull.

Id say just go buy one of those big bottles of tequilla from costco. Damn it sucks to be 15