I aborted my first two takeoffs is about all I remember. On the first takeoff got a master caution before 80 for low fuel, turned out to be a sensor error.

On the second takeoff prior to 80 knots the Captains radios died and the screen went blank. MELd it and moved on. So I was 0 for 2 out of the gates.

It was my first day so I probably would have called abort for hitting a centerline light.