OTHER NOTES:

I went to Clacton library today...to return a couple of dvds as well as a few books...as I walked through the security system, at the door...I could hear a short, low whistle sound...it was 'the same' for everybody walking through that door...oddly enough, my microwave makes the same sound now and then..."a bit like a train whistle" according to MI5 ONLINE...is it dangerous? silly question, I suppose...the two cannot be connected, can they?