My 9 month old pup, Nobby, will for no reason go absolutley crazy for a 5 minute spell every now and again! He will just be laying there and for no reason just get up and start running around the house or garden at full pelt and then as quick as he sarted just go back to laying down or play with one of his toys. He doesn't do any harm, but it seems odd as there is no real spark to it, ie we have been playing a game or something. We walk him twice a day, once on his lead around the village and then off his lead in the evening across fields. Does anyone elses cocker do this? It can be quite amusing, but not sure what it's all about? As mentioned, he doesn't get nasty, but it's almost like a switch has been flicked.