so i leave pup for school run - around 30 mins, then if I need to go to the shops ( could be an hour), then another trip out ( school run, dropping dd training etc) another 30 mins etc. is that ok? i mean they say don't leave pup for hours on end but sometimes it can be 2-3 hrs in total. This changes daily obviously. I have to go big food shopping today with my Mum which could be 90 mins. he hasn't been left today apart from 25 mins school run this am. mThat's alright isn't it? 