i'm starting a cafe job this summer. it's in 7 hour shifts. perhaps four months ago, my dog had trouble in down-stays and would whine after about a half hour in boredom. recently, i have been taking out with me to libraries and cafes for two hour intervals, and he is fine to sleep it off. he has not whined in months. i am hesitant to make the jump from two-three hours to seven, and i wanted to know if anyone else went through a similar transition and has advice. my feeling is that i should wait a few more months until his second birthday before attempting such a long interval.