Leonard: You'll never guess what just happened. Sheldon: You went out into the hallway, stumbled into an inter-dimensional portal which brought you 5,000 years into the future, which you took advantage of the advanced technology to build a time machine, and now you're back to bring us all with you to the year 7010, where we transported to work at the thinkatorium by telepathically controlled dolphins.
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Leonard: What's a dogapus? Sheldon: A hybrid dog and octopus. Man's underwater best friend. Leonard: There's someone working on that? Sheldon: I was going to. I planned on giving it to myself for my 300th birthday. Leonard: Wait a minute you hate dogs. Sheldon: A dogapus can play fetch with eight balls; no one can hate that.