> Sounds implausible but I’ve seen that more than once!
The textbook example of this going wrong is a lambda that is invoked on uploading to S3 that writes the result to S3. There's even an AWS article on it - [0]
We actually got an email from AWS recently at work that said “hey! Your lambda writes to a queue that invokes the same lambda, that seems wack”. We need it that way, but it’s enough of a problem that they built a way to detect it automatically.