This sign was posted on the door o’ Crazy Super Signs author.

It doesn’t appear to be the work of the Crazy Super himself — it’s straightforward to the point, has large block letters, is written in crayon instead of bic pen and the letters themselves don’t appear to be in his style.
While it isn’t the middle of the freezing winter just yet, it would can get quite cold should you find yourself without heat at night.
Let’s hope that this is the beginning of a new author whose work rivals that of the original!
In other news, a 311 lack of heat complaint would do a better job than this sign.