Translation of gruñido

Anyway, after an hour or so, I decided to head back to the host family as we agreed that I would return for dinner. I took one of these little yellow scooter taxis that were present all over Cuba.
Only if the circumstances support it, such events can take place. Anyway, the ones who make a personal problem a public one and who generalize by blaming the whole instead of an individual are guilty.
We left and went back to the boat which took us back to the big vessel. We started our journey back to the main land. It was already late and from the main land, it was still a four hour drive back.