for one man - whose company requires a sick note even for a single day off - he handed his bosses more than just the usual doctor 's letter .
the unnamed worker , from alberta , canada , instead came armed with with a scathing note from his gp , giving the firm - believed to be pizza hut - a ticking off for its office policy ` wasting his time ' .
clearly annoyed at having their time ` wasted ' writing sick notes for common colds .