June 27 2014....747 RTO just before we were at rotation as the brakes and spoilers were applied and we were subjected to significant de acceleration forces....told one engine warning came on that led to rejected take off. Pulled to taxi way and spent at least an hour there with doors open to allow air onto the aircraft...returned to terminal and eventually put onto another 747....further delayed because some passengers did not show and their bags had to be removed...when we were all eventually on and ready to go...walk around indicated an oil leak, crew at that point was off hours so we were sent off into the night to take care of ourselves on Wimbledon week in London ..meaning...no hotel rooms or rooms a long way out...wife and I and 3 small kids spent the night in sleeping bags on the Sofitel ballroom floor...fed but not watered as we did not have showers but very nice bathrooms...pleasant walk to T5 to take our flight to YVR the next morning after breakfast buffet...kids enjoyed the camping experience as did around 100 others ... the other 250? likely endured a long slog to a hotel outside London and then had to return early the next morning and then of course seek reimbursement for their costs....I met a local sports celebrity who toughed it out on the Sofitel floor as well...I fondly refer to the experience as the "Night I slept with "x" ". Memories.