If you mount hooks or ties to the top of your bucket, locate no further from center than in line with the lift arms.
Those new clamp on forks did not magically convert your FEL to a forklift. Be very aware of the limitations of these attachments.
The closest I've come to rolling my tractor, it was switched off with no one on it. Loading bundles of shingles from a truck body to a pallet. Tossed on one bundle too many and the rear end came up, pallet hit truck tire on one side, real ugly for a few seconds till things stabalized.