A very flat-chested woman went to see Dr. Smith to see if there was anything she could do to increase her breast size.
Dr. Smith told her to rub her chest every day after showering, repeating the phrase "Scoobie-Dooby-Doobies, I want bigger boobies." After doing this for a couple of months, it worked! She actually had a nice chest and was very happy about it.
One morning, she found herself sitting on a city bus, when she realized she had forgotten her little morning ritual. Terrified that she might lose her lovely boobies, she jumped up on the bus and said, "Scoobie, dooby-doobies, I want bigger boobies!"
A man sitting on the bus looked up and said, "are you a patient of Dr. Smith."
"Why yes" said the woman, "How did you know?"
The man leaned over, winked and whispered "Hickory Dickory Dock."