If I may elaborate my thoughts: any kind of engineering - I did not want to "catch-all" everything. How's this - "if you introduce a negative effect that can

If I may elaborate my thoughts: any kind of engineering - I did not want to "catch-all" everything. How's this - "if you introduce a negative effect that can yield a catastrophic consequence..." Remove it, or mitigate it? I say remove it, and charge more for the flight fare. If people want more leg room, then pay for it.