A blonde goes to work and sees that one of her co-workers has a thermos.
She asks him what it does and the fellow co-worker responds, 'It keeps hot things hot, and cold things cold'
The blonde was amazed and when she got home immediately went out and bought one. The next day she goes to work and is proud that she has this wonderful object.
The same co-worker realizes she has a thermos and says, 'What do you have in it?' she says, 'Soup, and ice cream!'
