Reminds me of an old joke, here's how it goes..
an mbbs student was waiting for her bus to arrive at a bus stop in Lahore
as usual, the bus was late so she started to gaze around to kill time, suddenly she saw a rickshaw with a printed advertisement on its back pass by and as she read the ad, her eyes widened and she fainted.
The ad read:
BE A DOCTOR IN 90 DAYS! FRESH INTAKES EVERY SEMESTER!