I am an expert tail chaser and catcher. (It helps that my tail is the most beautiful tail, with long sparkling fanning hair.) I find it's important to practice every day, even if you have to practice in the kitchen while the human are preparing human food. The trick is to twirl in a tight circle, and when your tail flaps out behind you grab hold of it - and don't let go. Don't stop twirling! It's all in the twirl. You can start crab walking sideways if a human is in your way, but keep the twirling in motion. Now, see how long you can hold it before falling in a heap. woof.