Hi, at the risk of sounding paranoid(!), my DD is due to go on a school trip and her inhaler will be in her travel rucksack (which is comprised of just one big compartment). I know inhalers are meant to be stored upright ideally, but will it matter if they are lying flat (or whatever position it will get into).... there is nowhere else for her to put it, no pockets etc.... it's just that my friend said it's dangerous to let them just "loll about". Surely that is not the case? Sorry this is such a strange question!! Thanks.