I've had excellent advice given to me while I've been working with Parker. Some has been in handling, training, approach, praise, correction, speed, stance.... I could go on and on. To all of those people, I have openly thanked. I asked for their advice and they gave it, freely.
I've also had 'advice' given without solicitation from me. While I'm sure that 90% of the time, the advice is valid, sometimes you have to take a step back and wait until the person is ready to listen to you. When I'm about to go into the ring is NOT that time!

LOL
I've also had people give advice when I wouldn't have asked them for it. When you've been around for a bit - you get to know who you admire, who you trust. So those 'free advice givers' whether you asked or not, make situations a little painful.
For me, I appreciate it when I can ask a question and people consider their answers. They draw on their education, experience, perceptions and understanding. These are the answers where I hang on every word. These are the conversations that I beg to join in on.