You send Tweets without checking character count.
(Now, the people whose stuff you broke cause you couldn't be bothered to test it might have a different adjective for you.)
"I don't always test my code but when I do, I do it in production" in white on a black, 100% cotton t-shirt. The Tall version is 2 1/2 inches longer than our standard t-shirt.
Note that you may see "I don't often test my code..." in some of the action shots. That's a first edition shirt. We've fixed that.