• We analyse queueing systems everywhere and tell people they need more bandwidth.
• C is a language, not merely a letter of the alphabet.
• We enjoy sitting in front of computers for hours at a time.
• We (well maybe just me) laugh at things like: 'Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway' (Tanenbaum)
• People don't die in flame wars.
• We expect people to understand when you explain how you were using the wrong config spec to build your code because the one you normally use doesn't work for this product because there is a different version of the embedded software on the product's hardware.
• We get excited over CSS 2.1 compliance in IE7, but can't understand what SOX compliance means.

There are probably loads more.