[capt_noonie]

Agree, they are never too old to learn! I've had fosters of all ages, young and old, and the only one who I couldn't/didn't teach tricks to was Scrappy due to his legs. It was hard for him to walk/jump/sit so I didn't do training sessions with him.

Anyway, yes to being in front of a wall. Don't hold the treat up too high, otherwise he may try to go into a stand or beg instead. Just hold it right above the nose and move it backwards.

I would really recommend to do training sessions during mealtime with kibble. That way they are good and hungry and will be more responsive. I don't think extra treats after or between meals will make keep their attention and will just put on extra weight.

Or find something they cannot resist. Mine love pieces of carrot, cucumber, tomato, sometimes they get pieces of bread or cheese too but those in moderation!