x 2 
NNB, the last time I flew with UA, they even make you go through
this extra 'interview' during the check-in process where they ask
you a host of dumb questions, and basically almost anything that
might be useful to you in an emergency is not allowed on your
hand-carry luggage (e.g. swiss knife, multitool, fist aid kit, if
its a proper one with alcohol and other liquids/lotions, flashlight
etc)