Elementalists that are staff specced will kneel immediately before your dominance. Dagger elementalists will vainly try to set up their lightning/fire burst combo. You will block it all and prybar them in the face. They will scream in agony as you fire many small poison darts into their posterior, and then scream in frustration as you static shot and blind them right before they finish channeling Churning Earth. Another victim to your kitten. 
Mesmers that do not have a 1h sword equipped at all will graciously present themselves as an offering to your kitten. Mesmers with a sword must not be underestimated. You will block as they set up their illusionary leap/blurred frenzy combo, or else you will take sizable (read: 1/10th of your massive HP pool) damage. While they are blurred frenzying, you will drop box of nails near them, and as soon as they end it, you will prybar them in the face. You will cripple the mesmer as much as possible with wrench throw and #1. You must learn to respond to a mesmer that uses arcane thievery to strip your boons and make you cripple yourself. You will run around feeding yourself medkits while tiny. The mesmer will eventually buckle under the power of your superior kitten and submit.
Necromancers will try to immobilize you in their wells. You will block and move out of it, and proceed to prybar them in the face. They will strip your retaliation and you will feel very naked. You will both engage in a duel of the titans for a short while, before reaching a mutual agreement to seek other prey. You two both have bigger fish to fry. If for some reason the fight DOES goes on, drop supply crate on top of them and quickly go fix yourself a cup of coffee or hot cocoa. It’s going to take a while.
Guardians are the only ones higher than TANKCAT engineers on the food chain. They are a true terror to behold. The greatsword Guardian will teleport on top of you and begin slicing your unmentionables. You will static shield, and attempt to static shot his binding blades. You will move in with Toolkit and prybar him in the face, and then immediately gear shield out of his whirling wrath. The sky will spark with fierce energies and the ground will tremble from the epic battle that is taking place. All other classes will die instantly from the shockwaves being emitted from the mighty Guardian and TANKCAT engineer colliding. With quick reflexes, some luck, and several minutes of fighting, you will emerge victorious. You will then have to recover for many days in a hospital, and you will have to visit a therapist for your newly developed post-traumatic stress disorder.
WARNING: You must NEVER fight a tank guardian, as the intense energies will make Tyria implode. When you see a X/Shield guardian, you will tip your hat and move on. Respect your superior. He will respect you as his understudy.
I hope you enjoyed the preview of what you’ll accomplish with this build. And remember, you don’t have to be a cat to be a TANKCAT!
Will post videos whenever I have a computer decent enough to record.
Now get out there and prybar some faces! MEOW