Dr. Williams, This morning, for the second time in about a week, I found a dried spot of "thick" urine that left a shiny glaze on the floor where it was deposited. Usually, their urine is much runnier than that. Is this something I should be worried about? I've never seen anything like it before; I'm not sure which ferret is doing it. Other matters: On the subject of poinsettias, I have heard they are poisonous. I don't know if that's an old wive's tale or truth, but I wouldn't want my ferrets around one without finding out for sure. One plant I know for sure is poisonous is the oleander; these are common in warmer climes like California; never let a pet near one of those. On Hawaii, I have read two messages now that imply that the state has good reason for outlawing ferrets. Would someone please explain why? To Fi-Fi: Thank you for letting your owner write a message about how to build a ferret run. I have a concrete patio in my back yard that might work nicely as the starting point. [Posted in FML issue 1032]