Telephone calls are intrusive though.
They pay no mind to what you are doing att he time and just demand yor attention. I don't answer my phone for any number of reasons, and withheld numbers is just one of them.

I won't answer on public transport, if I'm eating, pretty much if I am in the middle of anything that I don't want to interupt, even if it's just reading the paper.
( scarpe We Stole Bikes, Mon 6 Feb 2012, 11:58, 2 replies, latest was 14 years ago)

This,
I often put my office line and mobile on voicemail if I am in the middle of something. Phones are very much like a small child shouting in the corner of a room demanding attention, to this end they should be beaten and silent at times.
(Bonzodog29 is an unemployed sponge of the worst kind, Mon 6 Feb 2012, 11:59, Reply)

You usually answer if you're in the middle of a wank, though.

( tangledupinblue hairy badge with moving eyes, Mon 6 Feb 2012, 12:03, Reply)

I usually arrange for someone to call when I know I am going to be.

( scarpe We Stole Bikes, Mon 6 Feb 2012, 12:04, Reply)