Help! Performing in front of a deaf audience, and need an appropriate opening joke or two (plus my favorite three little pig joke)

Tomorrow I'm conducting a charity benefit for a large state wide deaf education foundation. I'll be in front of ~500 people talking. I Want at least one slightly edgy jokes that would cater to this sort of rich (and largely deaf) audience.

"Once upon a time, Three Little Pigs walk into a bar. The first pig orders 10 beers, downs them, and then asks for the bathroom. The second pig orders 15 beers, downs them, and asks for the bathroom. The third pig orders 20 beers, downs them, and then sits there eating peanuts.
"Aren't you going to ask for the bathroom?" asks the bartender.
"Nope. I'm the pig who goes wee-wee-wee all the way home.""

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