I'll help. If the man in the picture weren't resisting arrest he wouldn't be pinned to the ground. SirReginald is suggesting that him getting pinned to the ground will probably teach him a lesson. He is also suggesting that younger people are more likely to resist arrest and interpreted your lack of understanding as a perspective problem rather than a comprehension problem.

I'll help. If the man in the picture weren't resisting arrest he wouldn't be pinned to the ground. SirReginald is suggessting that him getting pinned to the ground will probably teach him a lesson. He is also suggesting that younger people are more likely to resist arrest and interpreted your lack of underderstanding as a perspective problem rather than a comprehesion problem.