My 39 week pregannt wife was in for nasty surprise after chowing down on a Tesco- "Pre washed and ready to eat" salad . She was halfway through the bowl when she spotted the wasp, just moments away from getting a protein boost. It appeared dead but obviously had been frozen and later came back to life! My wife is allergic to bee stings so we'd hate to think what happens with a wasp sting (wasps stings are still venomous even after death). Tesco's response, bring it in and we'll refund the salads and here is a goodwill £5 voucher (that barely covered the petrol and time spent). My wife used to love eating pre-packed salads, now she is turned off of them for life. Thanks Tesco Based on information supplied by Ben Bull.