Well, first you start by making sense when you ask the question.
After that, you look in a book and realize "tyrannosaur" has been extinct for about 65,000,000 years, and you won't be "getting" it...
i think that he/she is trying to "befreind" you by gaining your trust, then pulling a prank or doing somthing to you that would make yoube humiliated in front of everyone... p.s.i can relate to...