"The Microsoft Cheesecake" joke

A guy walks into the Microsoft Shop.
Guy: I'd like a cheesecake, please.
Receptionist: Sure.
The receptionist hands him a block of cheese.
Guy: Umm... This is just the cheese. Where's the cake?
Rec: You have to purchase that seperately.
Guy: What the -? What kind of product are you trying to sell me? Oh well.
Rec: Good. I knew you'd understand.
The Rec hands him the cake.
Guy: So... What do I do with the cheese and the cake?
Rec: You blend it.
Guy: With what?
The Rec hands him a blender.
The guy puts the cheese and the cake into the blender and blends it.
Guy: Now I have a bunch of liquid. What do I do with it?
Rec: Oh - you retard, you're supposed to exchange the cake for the batter first.
Guy: For the sake of Pete, what the -? Fine. Let's start over. So I get the cheese and I get the cake. Then I exchange the cake for the batter, right?
Rec: Yep.
The guy blends it.
Guy: Right... I'm still stuck with a load of liquid.
Rec: You're supposed to cook it.
Guy: With what?
Rec: With this full-sized oven.
Guy: What the -?
Rec: Yep.
The guy cooks the cheesecake.
Guy: Hey Rec! My cake is hot! Aren't cheesecakes supposed to be frozen?
Rec: Yeah, you need to put it in that freezer behind you for 24 hours. Since you're not an employee, it costs $1 a minute to use it.
Guy: You mean I'm supposed to pay $1440 to freeze my cake?
Rec: Wow! You're good at math! And, yes.
The guy puts his cheesecake in the freezer, pays his over-inflated bill, and leaves.
The next day, he comes back and finds the cake gone.
Guy: What happened to my cheesecake?
Rec: Well, you see, at lunch about an hour ago, there was this guy who was still hungry and saw the cheesecake and ate it.