(he tied that pressure bandage so tight that it might as well have been a turny....but on my head??)
The surgeon complimented my buddy on his excellent application of a proper bandage (most people do not tie a pressure bandage tight enough....we were taught using a penny; the penny should stay glued to your skin after you remove the bandage if it's tight enough)
Hence, Bee, tight enough against your skull and thus is the origin of the phrase "a penny for your thoughts" :-)
