facilitatious
making life easier for someone else, even if you end up with the worst part
I let my sister use my laptop. Now I have to deal with her spilled soda. Facilitatious, but my laptop is now a soda disaster.
He let me take the blame for his prank. Facilitatious, but now I have to face the principal.
She let me eat her lunch. Facilitatious, but now I have to deal with her bad breath all day.
xs