A blonde was shopping at K-Mart & came across a shiny silver thermos.  She was quite fascinated by it, so she picked it up & took it to a clerk to ask what it was.

The clerk replied "Why, that's a thermos...it keeps hot things hot & cold things cold."

"Wow!" exclaimed the blonde.  "That's amazing...I'm going to buy it."

The following day she took the thermos to work.  Her boss, also a blonde, noticed it on the desk & asked "What's that?"

"Why that's a thermos...it keeps hot things hot & cold things cold" came the reply.

"Wow, that's amazing.  What do you have in it?"

"Two popsicles & some coffee."