How many have seen the 'Youi' ad on TV for insurance, showing a clueless chap with his cheap Newtonian telescope pointing to the ground? He has his hand over the open end, and the mirror cell pointing up in the air, with the eyepiece at the bottom end of the OTA.
Nearly as bad as the collimation demo on the Obsession DVD with the two ladies... "Yes, nearly there, just back that screw off a fraction... yes... nearly - perfect!" - and the cover is on the primary
Regards,
Rob