Out of sequence? Shouldn't Lancelot's story precede Galahad's?
When Lancelot "rescues" Galahad, he's with other knights.
Later, he's alone with his squire/mount when he storms the swamp castle.
Is there any indication that the two vignettes got reversed somehow? Aside from Lancelot being alone, there's also Galahad's final line during the rescue from Castle Anthrax: "... bet you're gay."
Lancelot (defensively): "[pauses a beat] no I'm not."
Seems like the line would be funnier coming AFTER the swamp castle incident.
Then again, these are individual tales of each knight, not necessarily in chronological order.