I've flown a lot in my life, enough to hold statuses with airlines year over year for quite a while. It's always amazed me how cavalier most fliers are with the fact they're in a fucking metal tube travelling 9x highway speeds, owned by a company that factors in X amount of injuries/death per Y Km's flown as a KPI, operated by people whose union is constantly fighting with the airlines as they try to run those people into the ground and squeeze slightly more KM's flown out of them, even if it puts passengers at slightly more (but acceptable!) risks.
Oh, and this is all orchestrated by (stastically) the most stressed profession on the planet sitting in a control tower waiting to live a nightmare they all have constantly (....in the nightmare, 300 people die in a fire).
Leave your fucking seatbelt on, put your heavy shit away when the seatbelt sign comes on. Plan your bathroom visits around the likelihood of the fucking sign coming on.