Spiky usage or traffic overage fees? Adding droplets rapidly?

I’m strongly considering using DO after friends of mine have recommended it as ideal for use with clients. That said -

Spiky Traffic

My question is about “spiky” traffic. A friend of mine had a client site of his briefly get mentioned in the national news. He used a different provider with some kind of cloud oriented scheme that seems fairly similar. Anyway he rapidly updated the amount of workers or w/e they called it on that provider and it cost him at least +$1k. He left them working on the 2nd month so he got billed for 2 months at that rate. The client received about a dozen visitors the following month and wouldn’t pay for the second month, which is a different problem, but I think you get where I’m going with this.

Notify Can we set up notify or something for extraordinary usage? Cutoffs? And opt to scale down after that?

I’m extremely hesitant about taking on a relatively unknown book author client because his book has some buzz at various “Sci-fi Conventions” and I’m thinking his traffic will be about zero except right after them. If his book gets mentioned on the news it could cost me a fortune if something like this happened. If I can rapidly and transparently add droplets and bill him for this, it wouldn’t be awful though so long as they can downscale if this is just a momentary thing.

Kind of a Catch 22. Famous author client would be nice for the portfolio. But not if it costs me money.

I already offered to do his site at a discount provided he gets his own hosting, He had no idea what I was talking about even after I explained it to him with pictures. Apparently, he doesn’t even own a desktop computer and wrote his book on a typewriter.