[RajT88]

I can't say I've seen it with every vendor. Or even internal dev team I've been an internal customer of - but I've seen it around a lot.

You might be lucky in that you've worked at companies where you are a big enough customer they bend over backwards for you. For example: If you work for Wal-Mart, you probably get this less often. They are usually the biggest fish in whatever pond they are swimming in.