Well the Citation X isnt the only Citation with beefy engines. Last month I saw a CJ2 almost knocking over a firetruck, right next to me!

The pilots got in serious touble afterwards!!
They had hurried out to the plane, quickly went through the checklists and started up the plane. It was pretty cold so they ran the engines up a bit while parked, but the gust lock had been incorrectly removed, so they couldnt throttle down, only up, And the gust lock can't removed unless the throttles are at idle. So they were kind of panicing.
The FO (a friend of mine) had just had his checkride, so he wasnt that experienced, so he gives the throttle a real slammer, and it goes up to almost full throttle.
By this time they also find out that there's a small Cessna behind them, and two men trying to prevent the Cessna from taking off vertically because of the thrust from the Citations engines.
The tower now sees whats going on, and quickly calls the fire department. They send a truck over to get in between the planes, but the firetruck is this small minivan (high center of gravity), it comes up on two wheels and almost gets knocked over. But then they somehow got the engines shut down.
Not their proudest moment!

By the way, I love the Eaglesoft CJ2 (the only one I have).
