This ironic sign is not real
This sign produced a good laugh while it circulated the internet, but it is simply ironic. For example, this picture shows how students at this school planned a trick and prank. It showed a planning failure that the college had while signing up at the building entrance.
However, the laughter and sarcasm soon died down after someone brought out the real picture, showing that someone was just being funny. In the real picture, the sign and letters were placed right; there was no spelling or arrangement mistake.