Weeds in the window

Whadda mean, there’s weeds growing up through the window? What does that even mean? Tenants say the darndest things. But then John was saying the same thing. Bindweed growing in the window. In the window? Outside the window? No, in the window, like, through the window sill. Through the window?

Well, bindweed is an insane plant. It’s indestructible. But I still couldn’t picture the problem until John sent a picture.

Uh, yeah. I’m not meaning to be a slumlord here. I thought I’ve seen it all, but I’ve never seen this. Not sure what to do about it either!