Bad Timing

I didn't realize this joke was poorly timed until I went to post this. I wrote all the jokes down a few weeks ago to be more prepared once school started. I just read the question and drew a sheep this morning. Just read the punchline, and realized this is not in the best taste.

If I had been paying more attention, I would have chosen a different joke to send today. That's what I get for packing a lunch first thing in the morning.