tired

scott: so there was a farmer with two cows and he couldn't tell them apart, so he weighed them and the white cow weighed 2 pounds more than the black cow
me: ok
scott: no, no, no. you're supposed to laugh. it's a funny joke.
me: i don't get it.
scott: really? do i need to explain this to you? (repeats himself with more dramatic pauses between words)
me: (silence)
scott: seriously, dude, it's a cow joke. it's not deep. still nothing?
me: nope, i'm that exhausted.
scott: the cows are freakin different colors. wow, you ARE tired.