I just put up with them now. You could mention something about "how long can I keep the Porsche in the short stay" or "can't wait to get back as my sixth bedroom needs painting". In otherwords comply with the restrictions and wind them up, there will be a far bigger stink when planes are delayed due to security staff being ignorant, rude and full of themselves. To be truthfull and maybe the security staff don't realise but we actually fly the aircraft and if we wanted to crash, we would. Look at eurocontrol and the DMEAN section and also the CDM project you will find that over the next few years security delays will go and the flight crew will have separate screening to ensure we are airborne on time.