Knock knock joke to text him and make his day up?

Question

what are the short and knock knock jokes to send him when he is at work and make his day better? not pushy at all but pointing that missing him.

Answer 1

lol this is a stupid one but it always makes me laugh. tell him to say knock knock, then when he does say who's there. and just go on like hes telling the joke. it usually gets some pretty funny confused looks or replies. i just sent my boyfriend a pic text that had a pic of a 50's woman cooking, and it said right after dinner i am fu*king you to death. lol  that's a good one.  

Answer 2

knock knock whos there lets lets who lets have s*x when you get off

Answer 3

i don't know any but i think its a really nice thought