Adam and Twins
For all that they had sort of announced themselves, the twins had caught Adam slightly off-guard. He only raised his gun after they'd started spraying him, swearing as he did so.
Dog attempted to help his Master by barking and running around the twins, darting between them and lunging at their feet before leaping back without really coming close to them at all.
Even though it was an up-hill losing battle, Adam wasn't going down without a fight. He sprayed the twins back as effectively as he could.