DOes your dog need a mechanic?

Taking your dog to a trainer is a lot like taking a car to a mechanic.
When you first get a car you take it for an inspection to make sure that its roadworthy. Similarly you should take your dog to a trainer to do an assessment of their behavior, what they know and don't, and where your potential trouble spots might be.
Next we take our cars into the shop for routine maintenance. You get your oil changed, tires rotated, and change the air filter. Thusly you should also take your dog in to establish a solid obedience foundation to make sure that daily life runs smoothly.
If you're noticing a strange rattling noise that could indicate a larger issue, you take it in to make sure it doesn't get worse. So if you are seeing some troubling behaviors in your dog, talk to your trainer before they escalate into dangerous behaviors. It's a lot easier to do an oil change then fix catastrophic engine seizure.
If you have a true emergency like your tire blowing up you take your car in as soon as is safe to do, and your mechanic can squeeze you in to make it right. If your dog has some sort of incident that might leave lasting trauma it can be important to undo it before it becomes a set-in-stone issue.
And finally if you really love your vehicle you might want to put in some extras and upgrades just for fun. You can do all sorts of fun activities with your dog to upgrade your relationship with them!
A solid maintenance plan and a close relationship with your trainer can make sure that you get as many smooth miles as possible with your pooch.