A former Yahoo big data engineer here. At some point I was bombarded with enquires from different startups who were looking for a "Big Data Guy". The conversation would go as:

  - (Me) So, how much data are we talking about?
  - (them) 50GB
  - Per hour? 
  - No thats our dataset so far. 
  - (pause)
  - (pause)
  (FIN)