[jawnv6]

It might? Your OP was very specific on the subject and you seem aware that the side is inappropriate: Few hard taps on the bottom detach the CO2 bubbles and cause them to all go to the top few hard taps on the bottom (not the side), few hard taps on the bottom of one (finger-tip with almost painful force)

The actual claim on the site: Claim: Tapping the side of a soda can will prevent its contents from foaming over when you open it.

I don't think you're as vehemently committed to rigorous fact-checking as your little anecdote would have us believe.

[goldcd]

Well on your basis we could open an infinite number of variations. Tap on the bottom or the side. Tap on the side, whilst facing North. Tap on the side, whilst facing North, using a finger with red-nail-polish. Tap on the side, whilst facing North, using a finger with red-nail-polish, on the left hand of a woman born under the sign of The Dragon.

My point is that the specificity of the OP is down to Snopes, and I can't change that. They don't even provide these details. Maybe the side-tapper was born in the year of the pig, and that matters. My issue is mainly that they wish to be perceived as the source of all truth - and seemingly have NO interest in being corrected. Snopes never publishes any statement limiting their results, asking for further input, etc etc. Their 'thing' is just publishing absolutes. Nobody else does this.