Two weeks ago:
customer - we need a small website, nothing special. Give us your cheapest option
*proceeds and give them the cheapeast offer, the accept and deploy their site*

Today:
I "notice" a spike in trafic, 20k request / second, and many sessions had 60-70 MB (big videos on the site) in size which cause the gateway to die and almost killed the entire hosting platform.

"Nothing special" turns out to be a website for a big campaign that they are currently running on TV, Radio, Paper and AdWord.