The setup;
You're an average work-a-day joe beat cop, half way thru your shift (around 1am) you've been sent out on a strange call to a low-budget motel in an "ok" part of town.
When you (and your partner, plus 4 others as back up) arrive, you find an 8' tall robot laying in a heap on top of 3 sport bikes. A new local hero is waiting for you to give his statement about what happened.
While wrapping up the details, you start to "feel" fear seep into your spine. At first it seems to have no source, but then you can almost "sense" it pulsate from behind a door left a jar to a near by motel room. Every fiber of your being is telling you to run. Any moment whatever it is will come thru that door...
presuming no psych lims, or other factors (i.e. people, other than yourself, in danger) would you need an effect of +20 or +30 to run?
...and, what do you think fits this best?
a Presence Attack (one command "run", Invisible Power Effects)
or
a Mind Control (one command "run", No Range, Exp)