February 16th is National Do a Grouch a Favor Day, a call to kindness in the name of a grouch. You can celebrate this occasion in a variety of ways — and whether you are the “grouch-er” or the “grouch-ee” doesn’t matter, your kind act will benefit you either way. We’ve all been ill-tempered, irritable, or complained too much, and we all know somebody who engages in those behaviors. There’s no shame in being a grouch: comedian Lewis Black built a very successful and celebrated career on grumpy rants.