>pre lb
Since you're not feeding enough power into the spell pattern to make it coherent, you quickly work your way to the minimum required.
That won't affect your current attunement very much.
Your eyes darken to black as a starless night as you prepare the Lightning Bolt spell.
Casting Lightning Bolt aboard a ship would certainly be fatal to you, the crew, and possibly the ship. You can't bring yourself to even consider preparing the spell.

---

Bleh. A retired mage can't even enjoy a quiet afternoon of fishing.