Condolence Card

So, what's the appropriate condolence card to send someone who is about to become homeless due to my bunny siblings' gardening? I need to send these people condolences too, on their home improvement project, that is soon going to be overtaken by a swarm of vines. Poor, poor neighbors. And I received a report, too, that this home improvement project has left gaps while it is underway that would provide perfect paths for vines to sneak into their dwelling. Can I be held accountable if they wake up to find their bed surrounded by plants, and a squash watching their television?