I totally agree with respect to follow up. What prompted me to start this thread was a cold call from someone (who sells advertising for a local rag) I'd never met but who picked up my business card from the card/brochure table at an event. She left me a voicemail "name, company, call me at xxx". During the afternoon I returned the call 4 times, getting voicemail each time. At call #4 I left a message "name, company, tried to reach you, if you're selling advertising thanks but I'm not interested at this time".
At 8 p.m. (having been running since 5.30 a.m. and just sank into an armchair) she called me back wanting to know who I was, what company and what I wanted. "I dunno, you called me". She rambled for a minute or two trying to figure out why she'd called me, then said she thought I might be interested in joining another group (which was way out of my field and market). Needless to say by this time I was totally unamused

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Lynne