Flying rules be damned

I was flying recently with the whole family and in my backpack I had forgotten a 1/2 lt bottle of water, which when asked, I told to the security guy that it was for the kid. (the kid being a toddler). The security guy proceeded to tell me to give a sip from that water to my kid. For better or worse, I did.

But I was thinking. Say I intended to shoot the plane down with some magical liquid explosives that resembled water. I was travelling with my whole family. So the whole family would share my fate. Why the fuck would I care if my toddler drank some poison/explosive if it was to die anyway in the next few hours?

What an absurd world...