A long time ago I did that. Ever since, I make a point of checking the controls before I taxi out. Thought I had the problem beat.

Then, last summer I was flying two electrics with the same Tx. The first was hand-launched, the second took of from the ground. Sure enough, when I was about to taxi out, I checked the controls and the elevator was reversed - still had the other plane programmed in.

Ok, switched to "plane 2" checked controls and took off.

Later, I went to fly "Plane 1" - the hand-launched plane - because it doesn't taxi out, I forgot to check and , sure enough, I was still on "Plane 2" so it didn't get very far.

Just goes to show you, you can always get bit by the gremlins!