Heidelburg, the "world wide authorities" lost their teeth and ability to protect you when they became self funding from their client airlines. You are looking to a safety net that does not exist, legal maximums became commercial targets and nobody but those that share your airbourne fate care. I understand your ignorance of the industry and appreciate your desire to gain an insight but your hostilty is a mistery. Don't know about the tug - maybe the tug driver the deicers and ground staff in AGP were just trying to ruin your day, they do that sometimes you know, if you're mean to them.