Getting an error in something you're using stinks. You have to stop what you're doing, figure out if you did something wrong or if there's a problem with the tool you're using, figure out a way around it, and only then can you get back to what you were actually trying to do in the first place.
How long this takes and how you feel about it partly depends on the error messages you get. Some are no help at all: "An error occurred. Please try again."
Some are incomprehensible: "Error 0x930432. Contact support."
But there's only one that made me laugh out loud yesterday:
"421 Timeout - try typing a little faster next time"
Go ahead and have fun with error messages. Be informative and a little irreverent. After all, when's the last time an error made you smile?