Saturday and Sundays are really boring days, I was thinking at the weekend more people facing with a lot of issues and they would come here to ask, but it sounds to me that I was totally wrong about that
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I'm inclined to believe the chances of messing up are the same on any day of the week. But on Sat/Sun people is more likely to just sigh, close their laptop's lid and go doing something else :-)
Those answers tend to be pitfall-rich. E.g. having a file named -i may be helpful and create a sense of protection, until one also happens to have a file named -rf.