Watch Dogs

A blonde was walking her dogs when a man walking in the opposite direction says "oh my, you have such beautiful dogs.. what are their names?"

The blonde replies "Well, the taller one is Timex and the shorter one is Rolex."

The man responds "Huh.. that's interesting.. why did you name them such names?"

The blonde sighs and shakes her head "Everyone keeps asking me the same thing... duhh, what else can you name your watch dogs??"