Had a nice commute into work this morning.
Started to shift into 3rd and whammm car took off on me.
(Granted it's my commuter/beater 98 honda civic so everything is relative of course)
Stomped on the pedal a few times as my brain was trying to process what was going on. No shit, in a microsecond, I actually thought....this ain't a Prius is it?
Threw it into 5th gear so I didn't burn out the engine (going about 40 mph), stomped on the pedal one more time and realized something was dorked so I killed the ignition and coasted to the side of the road, then onto a side street.
Tried turning it back on and it revved hot again. Got out, looked under the pedal-nothing, moved the floor mat (didn't look like it was on the pedal but was dark) and tried it again-good to go. 99% it was just the floor mat slipping onto the pedal and getting out caused it to slide off.

Overall, glad traffic was light this morning and I won't need any caffeine today!

Check those floor mats and drive safe....