You have to draw a clean line between "stuff it is really fun and enlightening to play with" and "stuff you introduce into your stack". Even if you have a clea

You have to draw a clean line between "stuff it is really fun and enlightening to play with" and "stuff you introduce into your stack". Even if you have a clean line, when do you promote something across that line? It is easy for little bits of weirdness to escape detection(Mostly thinking about Cassandra write failures here.) in a fun to play with environment especially if they only come out when you are running a cluster.