Parents of Young Children [I Have Children]

I would like your input. Last weekend I was having a drink beneath a tree by the beach and a short distance away a 6-y/o boy was playing in the runoff from a faucet. He was building twig structures in the mud, an engaging child whom I enjoyed watching. I gathered a handful of twigs and presented them to him. He gave me a mechanical "thank you" and continued construction. Before I even resumed my seat under the tree, dad appeared and rushed him off. I had neither touched nor spoken to him. So tell me, parents, would my action have aroused your suspicion? I was mildly offended at the implication.