One day a blonde walked into a electronics store. She asked the person at the counter if she could buy that tv. The person said we dont sell to blondes.
The next day she went into the same store with a brunnete wig on. She said can I buy that Tv. That same guy said we dont sell to blondes.
The third day she came in with a black wig on and said can I buy that Tv. The same person said we dont sell to blonds.
The blonde said how did you know I was a blonde the whole time?
Because thats not a tv, its a microwave!