Interesting thought. But I come to the conclusion that the bus's engine (wetsuits doomed ass gambling site heh) is more important than the seating arrangements haha. Therefore either way, you lose when the engine explodes

Question is, are you going to be seated up front, in the middle, or right next to the escape hatch (my bot) lol.
On the top deck of an open roof tour bus

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Generally the hatch is near the engine so the front (assuming it's a modern bus with the engine at the back with an override handle for the hydrolic door at the front of the bus)...