I think we have mistakenly coined the term "bee line" to mean to go directly to your destination without side tracks. Really, it should be "turtle line". Let me explain.
When I go outside with Frankie's carrot treat and call him he makes a "turtle line" for me. He will walk over anything or push aside any object that gets between him and that carrot. I have seen him plough through cinder blocks, tables, rocks, piles of wood, bushes, other turtles all on the quest to take the shortest path from him to the carrot. It can be quite funny to watch.
Today he made his "turtle line" toward me and the carrot ploughing through his pool of water (dumping all his water) and knocking a table over. It would have taken him a mear six extra seconds to make a slight course adjustment to avoid these obstacles. No way Frankie, he wants that carrot! Its like he hasn't eaten in weeks!