Agreed it never should be done, I got caught the one week I was without my handsfree kit, old stereo with bluetooth was stolen and was waiting for a new one. The annoying thing about it was, I was negotiating a roundabout, being in the correct lane, indicating and spotting the undercover police car coming the other way to end the call. the copper even said he was impressed but 'rules are rules'! Never done it again since, just not worth it. So many people are incapable of driving and doing anything else at the same time. Especially women or van drivers, they tend to struggle just to do the former. Worst one I saw was a women paramedic texting whilst driving an ambulance the other day :-O