> Pro tip here: Put your batteries and power cables in a checked bag. Only take your cell and laptop as a carry-ons to prevent them from "disappearing". Works most of the time, especially with full flights and/or busy days.

Really, DO NOT do this! There's a reason batteries need to be in carry on luggage - because they can spontaneously catch fire mid flight, and while it might be unpleasant, if it does happen in the cabin it will be spotted and dealt with rather than having an uncontrolled fire in the luggage hold which is also generally rammed full of other flammable things like clothes.

And in any case, all carriers and governments require batteries to be in carry-on luggage AFAIK, so even if you disagree that there's a fire risk, you're still breaking the law. But then as the rest of your points seem to be mostly concerned with the possibility of being caught for breaking the law, I guess you don't care about that.