I use bribery too, BUT Crackers (the little darling, as I have to remind myself every night), prefers being in the garden to carrots. Generally, getting him to go inside takes about an hour of fencing off more and more of the garden so that eventually there is only him and the back door (he knows perfectly well if I try to stroke him in the evening that he will get picked up and taken inside, and so won't tolerate such impertinance).
I DO like your pictures of the many buns mobbing you.