Glad this turned out OK!
I know everyone one of us that has been roasting any length of time has had a scare or two, but for newer roasters that haven't had the drill it is VERY important to plan ahead about safety. When the adrenalin hits thinking is not at its high point.
For each roaster, I try to think out rough plans for things that easily could/will eventually happen, like
- power outages/complete malfunction in the middle of a roast
- sudden drum stoppage at a bad spot/misc discharge issues re: this thread
- sudden ventilation blockage/fan/controller failure
- chaff flare-ups in any exhaust venting
- ignition in or outside the roaster at bean discharge ( lots of o2 quickly introduced all over the roaster )
For general safety concerns having a good sized extinguisher handy, a pair of silicon gloves nearby, ability to quickly remove power/separate from any fuel source, and a solid emergency plan go a long way to having a good outcome. It also looks much better from the outside, which can be important if you have err.... potentially critical bystanders nearby.