I can understand your concerns and tbh I was as well that's why I was asking advice from people who had them in case it was stupid and dangerous, personally I have always been a believer in keep what you want to keep as long as you know what your getting into as chances are you will care for an animal you want rather than something you have to settle for, for instance my first snake was a red tailed boa something that most snake owners say is too much of a snake for an inexperienced owner, in my experience she has been more friendly and much more entertaining to own than a corn snake or other begginer species, I think the P.Metallica is a beutifull species and if I can only have 2 display vivs in my living room I know that's the one I want to look at, so far I haven't had any issues with it , I did have a little bit if bother when my landlord seen them and initially told me I had to get rid of them but he has realised that they are really no harm to the property and now both my B.smithI and P.metalica are happily living in a custom display viv, the fact that i understand the seriousness of the venom in this species i know to have plenty precations in place when it comes to maintenance, for instance the water dish that I know needs cleaned and filled is right beside the door to minimise how much I need to open it, and having the boa I have plenty of long 2ft plus tongs for removing anything that needs to be removed without the need to open the viv more than a quarter and I do this when I can see him resting comfortably at the opposite side and have 2 catch cups just in case