Joke of the Day - ridiculous scenario and word play

Not that long after my decision to actively be more positive, I started going to a Joke of the Day site regularly. I'd visit on Wednesday mornings, at the beginning of my marathon day on campus. I'd get to class early and have a few minutes to spare before everyone else arrived. I think it helped, particularly during the middle of the term when everything started to get hectic and crazy. Even though things have calmed down substantially, I still like to check the website and rate a few jokes sometimes.

There are enough jokes in the collection that some are bound to be bad, but today's made me laugh --

A man and an ostrich walk into a restaurant. The waitress asks, "What will it be?"
The man replied "a burger and a coke." "And you?" "I'll have the same," the ostrich replies. They finish their meal and pay. "That will be $4.50," The man reached into his pocket and pulled out the exact amount. They do this every day till Fri.
"The usual?" she asked. "No, today is Friday. I'll have steak and a coke."
"Me too." says the ostrich. They finish and pay. "That will be $10.95"
The man reached in and pulls out the exact amount again just like all week.
The waitress was dumb-founded. "How is it that you always have the exact amount?"
"Well," says the man. "I was cleaning my attic and I found a dusty lamp. I rubbed it and a genie appeared." Wow!" said the waitress. "What did you wish for?"
"I asked that when I needed to pay for something, the exact amount would appear in my pocket." "Amazing! Most people would ask for a million dollars. But what's with the ostrich?" "Well," said the man. "I also asked for a chick with long legs."

--- insert laughter or groan --

I think I found this joke funny because I like jokes that present ridiculous scenarios / imagery and play on words. It would amuse me to come up with tags for the different types of humor in these jokes. I wonder how much of relational compatibility you can predict simply based on whether two people think the same types of jokes are funny.