I thought he meant start watching build up.. did think was a touch harsh on Carra. He's not that dull.
Just had a nice long visit from a nice plump opossum. Was sitting on welcome mat eating the food we put out for a stray cat visitor. Seemed completely nonplussed by the family on other side of glass watching him. (Or the jealous cat watching 3ft behind him)
Do you mean why not? Well, you can try - but they tend to have their own opinions on the manoeuvre and it rarely ends well.