This was nearly 20 years ago, on the Tower of Terror. After the drop sequence and our elevator car exited the drop shaft, the doors closed, and we only had backed up out of the shaft, but our car stopped just outside of the drop shaft doors. So we were facing those drop shaft doors as the next car was in the drop sequence, so that was kind of worrying because we were so close to that high speed machinery. And then their car was brought down to our basement level and so the drop shaft doors opened, and then they started to back up towards us! Thank God, and the computer system, we started to move too and as we started turning, again I was worried that they were going to hit us because we both were moving at the same time and our car was now parking in the exit. Thankfully they did not hit us, but it was strange to be facing the drops shaft as it was working and then to be watching the next cabin moving towards us, right in front of our view.