I think a possibility of knowingly pushing the handlebar should be removed from me, just in case. After all I could do it.

And while we're at it I just realised my car has a similar vulnerability, but triggered by a slightly different mechanism, but the effect is exactly the same, I can crash into a pillar.

Edit: oops, I just discovered that if I have a banking app installed on my phone, then tap my screen in the specific places, enter several numbers, including the number I receive in text, suddenly I lose all the money.

That's staggering!