At work, we recently forked a project which includes a code written in Go and I needed to fix a bug in that code. I don't know Go, but my colleagues were able to help me out and I was able to get the code working.
I've decided, though, that it's time for me to learn Go, as many Kubernetes utilities are written in it and I'm basically doing K8s day-in and day-out at this point. I'm taking a course on it to get the basics, but have a neat idea for deepening my knowledge. More on that later.