You can get shot by the homeowner with a bow if you enter their house, causing THE END and restarting the game. No noticeable after effects.

the dragon says nothing

the glitch says different things depending on the angle you talk to it from

the priest tells you to leave, and prevents you from going behind them (can't find any way to do so regardless)

HIDDEN STUFF:

If you  move DOWN OR UP after entering the front door tile of the home owner, their arrow will miss you. approaching will get them killed by the glitch, and depending on what tile you enter on, they may say "PLEASE DONT KILL ME." Doing this causes a kill screen with the glitch, and then a softlock on a (C)OFFICIAL ELECTRIC screen.

NEEDS INVESTIGATING:
If you IMMEDIATELY exit out of the homeowner's house after safely entering it, you can see the arrow continue to sail past outside, toward the glitch. however, simply walking left toward the glitch after does not show any sign of damage, and no discernible effects.

Anyone else find anything more?