[High Praise! to Mental Floss]
Does Tapping a Soda Can Really Prevent It From Fizzing Over?
Truth is (and I’ve tested this) any can of soda, no matter how vigorously shaken, is safe to open after resting for 20 seconds.
Please note that this does NOT hold true for soda in plastic bottles of any size.
[Think you have a link that’s IMAO-worthy? Send it to harvolson@gmail.com. If I use your link, you will receive High Praise! (assuming you remember to put your name in the email)

If you can’t wait 20 seconds be sure to aim it at your sister.
Not good advice Cat. One of the most severe punishments I ever got from my father was for doing that very thing. Two weeks of no TV and no playing baseball in the street with my friends. That was the longest two weeks of my life…I was only twelve but I still remember it like it was yesterday and my sister never lets me forget it.
Yeah, nobody can get you into as much trouble as a sister can.
Besides it is sexist and you are opening yourself to the wrath of SJW everywhere, probably be barred from attending college as well.
A møøse once bit my sister…
If she’s anything like my sister she had it coming.