Maybe his GPS comes with a spirit level?
ok ok.. let's give the poor lad a break. Don't be too hard on him... A few years ago, an experienced 747-400 crew took off thinking that their GPS's would re-align their IRU's for them in flight (they tried a quick alignment at the threshold for a heading discrepancy, but pushed the TOGA switches before the IRU's had resumed normal ops).
Rgds
NSEU