Old Island Fumigation pumped poison into two of the three buildings in a condominium complex to kill bugs. Old Island was told that the third building was sealed from the other two, but in fact, it was not. Residents of the third building became ill. The opening that let the fumes into the third building was a mistake made by the architect or contractor who built the buildings.

Is Old Island liable? On what theory? [Old Island Fumigation v. Barbee, 604 So.2d 1246 (1992)].