Too many to tell in one post, but I think this one rates right near the top and occured just last week.
Client calls complaining their boss can't receive emails on his brand-new Blackberry. He's in Aruba (you should already know where this is going).
Not knowing how things were configured, I remoted into the client's PC to see if he's using the Blackberry Desktop manager. It's installed, but noticed there isn't a PIN assocated with it. Then I realized that they don't use Exchange, just POP accounts hosted off of customer prem.
Then it dawned on me that his phone provider must be doing POP for him. So I ask:
"Can he access the Internet on his phone?"
"I dunno, we're trying to call him back, but his cell-phone isn't working."
I'm still trying to figure out how he called his office (Had to be from a hotel phone).
PH cause even SHE knows how cell-phones work.