Definitely not intentional. Even if you are fidgeting with the power button, while being bored, the phone makes so much fuzz about it, when you hit the right combo. You would need to be deaf, blind or dead not to notice you’re just about to call emergency. Or startled by the noise, panic and throw your phone out the window followed by a brick, hammer and grand piano…
It’s usually a butt call, it easily happens in your pocket or bag, specially if you have other items in it as well. Some phone/cupholders in car might be just the right shape to press the power button repeatedly when turning or going over bumps.
Sometimes I wonder how can people not notice they’re calling emergency, because the phone usually makes loud noise and counts down before actually calling… But then I realise that if I have switched off notifications on my smart watch, I often miss a call ringing in my pocket, so…
PIA