There ARE dumb actions first off... There are things that DON'T work and have proven OVER and OVER again NOT to work... appearing NEEDY for example... Michele Davis gives a VERY LARGE list of DO NOT DO's when divorce busting...
So, ya, anything that's on that list I would say is a dumb action.
And no I am not assuming someone going out to have a good time is cheating... you're reading way too much into posts stuck808... just read the text that's there on the screen.
"Not wallow in her misery"... so... you would say THIS - "wallowing in her misery" is doing something dumb then?
You see, there ARE dumb things... and that is NOT etiher action or not... there's constructive actions, unknowns, AND destructive actions...