Cold calling is intrusive, disruptive and a pain in the lughole ("Cold calls make me hot under the collar", Robbie Dinwoodie, The Herald, October1 ) but I admit to a sneaking regard for the recent caller who told me that I was just a grumpy old b***** and then hung up as I had expressed annoyance at being disturbed at teatime.

R Russell Smith,

96 Milton Road,

Kilbirnie.