While I applaud Lynn Massey-Davis' desire to experience first-hand what happens on a night shift in Hull ('Siren voices', 18 March) and accept that she says she 'learned a great deal', it is a pity that she did not learn two fundamentals.

One, that paramedics do not drive around in a 'van' and two, that the people they care for are patients, not 'clients'.

Chris James

Former ambulance service chief executive

Swansea