Cessna 172s

As much as I love them, I hate them. I was suppose to do a solo night flight in ONE. Everything is going good until the runup. The low fuel lights come flashing eratically. I did a complete pre-flight. I what I did is something that no pilot should think of in any similiar situation, I almost decided to fly regardless considering I did a full preflight and everything looked good. I decided that would be a bad idea and taxied back.
The flight school gave me another Cessna 172 to fly, and right after leaving the ramp, its low fuel lights started flashing. So I ended up parking that one too.
Just want to remind current and future pilots :
IF ANYTHING AT ALL LOOKS OUT OF ORDER PARK IT!!
and dont spill 100LL fuel on your hands, it burns after about 30 minutes
The flight school gave me another Cessna 172 to fly, and right after leaving the ramp, its low fuel lights started flashing. So I ended up parking that one too.
Just want to remind current and future pilots :
IF ANYTHING AT ALL LOOKS OUT OF ORDER PARK IT!!
and dont spill 100LL fuel on your hands, it burns after about 30 minutes