DHorse has figured out that I'm never ACTUALLY going to touch him with the whip (despite all manner of threatening whip-waggling and menacing sounds) and now spends the whole session trying to follow me around the arena like a puppy, presumably hoping for cuddles/edibles. He's only four but going beautifully under saddle and coming long nicely with suppling and bending. Should I try something else or just give up lunging altogether? Any tips?