"Barking Dogs" joke

An exhausted blonde dragged herself to the doctor’s office.
“Doctor, there are dogs all over my neighborhood, ” she said.
“They bark all day and all night, and I can’t get a wink of sleep. ”
“I’m going to prescribe some sleeping pills, ” said the doctor.
“A few of these and your troubles will be over. ”
“Great, ” said the blonde.
“I’ll try anything. ”
A few weeks later, the blonde returned, looking worse than ever.
“Doctor, it didn’t work! I’m more tired than before! ”
“I don’t understand how that could be, ” said the doctor, shaking his head.
“Those are the strongest pills on the market! ”
“Maybe so, ” said the blonde, “but I’m still up all night chasing those dogs, and when I finally catch one, it’s hell getting him to swallow the pill! ”