so what your saying is you sent it out with old brake fluid, it boiled and he lost all braking ability untill the fluid cooled down and the brakes worked again or the brakes pads you used in the car were to inefficient to do the job? as really there is nothing else that can cause the issues you are describing,
being part of a pit crew, unfortunately i do agree with you saying it was a racing incident,
but i also beleive poor maintenance or poor product choose contributed to this accident
and him not going fast enough on pit entry is a cop out, as we all know there are speed limits with in the pit area and it doesnt take a metre to go from full speed to 40-60km/h