Not irrational
Reason included in your statement-
"I'm old now, and reserve the right to be spontaneously and irrationally grumpy."
See those first three words?
BTW
Best wishes mate.
"A civilian gang of thieving lobbyists for the military industrial complex is running the White House. If to be against them is considered unpatriotic -- Hell, then call me a traitor."
-- Hunter S. Thompson