Exactly. My tendency is to try to keep my personal use of company computers to a reasonable level and conservative scope, because while I know my company is go

Exactly. My tendency is to try to keep my personal use of company computers to a reasonable level and conservative scope, because while I know my company is going to be reasonable about it and most likely leave me alone, I fully recognize that it's their computer and me using it for personal things exposes those things to their scrutiny if they have reason, or even if they suspect they have reason. Frankly, I'd be a little surprised if none of my employers have ever perused my browsing habits while investigating something (example: I once had an officemate get fired for sucking up all the office bandwidth by running a public porn server from his desktop -- that was a super dumb move, and I really wouldn't hold it against anyone investigating the problem to take a general survey of our web traffic habits in the course of chasing that down).