Shocking treatment by the ground handler (i.e. not easyJet) but I think the airline should take some extreme measures and do a lot of damage limitation - afterall the lady bought a ticket from easyJet and should be respected from start to finish. This happens a lot in the US. Particularly Southwest Airlines, who randomly decide that someone (having just come in on another Southwest flight) is now too fat to fly despite them getting on the exact same type of plane, with the same seats. Disgraceful.