I just found out that today was "Positive Thinking Day." I suppose it would have been more useful to know this earlier, as I've already spent the entire day exuding a miasma of ill-will and sarcasm.
"But Solipsist, if today is Positive Thinking Day, then when can we celebrate our inner pessimist?"
Ah, that would be "Negative Thoughtsmas."
"And when is Negative Thoughtsmas?"
Oh, my child, every day is Negative Thoughtsmas.