"this upsets me when I see people taking risks for nothing" this happens all the time, for every task. Life is practically a game of balancing risk and reward. Different people balance risk in different ways. Perhaps they accept the risk, but find that the productivity boost or convenience of eating at their desk is worth the small risk of paying for the price of a new laptop/keyboard. Or perhaps they have mistunderstood the risk, having never (yet) suffered through the process of replacing it.