DM_Jeff
Explorer
Wolfwood2 said:"On the ground" should mean that your feet are planted on a stable surface capable of supporting your weight. Not more and no less.
Hmm, after checking a bit I too shall follow this lead. The PHB supporting text under Dwarves helps me see better what the rules intended. Thanks!!
• Stability: A dwarf gains a +4 bonus on ability checks made to resist being bull rushed or tripped when standing on the ground (but not when climbing, flying, riding, or otherwise not standing firmly on the ground).
-DM Jeff