Blonde (notice the e) goes into unisex barbershop.
Asks for a cut, but says that she can't remove the headphone set she is wearing. Hair dresser says OK, I'll do my best. The phone rings in the back of the shop and the barber runs to answer, accidentally knocking off the head phone. When he comes back, the blonde is dead. After he calls 911, he listens to the headset out of curiosity.

Breathe in-----, breathe out------; breathe in------, breathe out------