If two people are talking, you might say, “Please pardon my interruption, sir, but you have a telephone call”; that would be considered something that would be okay to interrupt someone for.

Hannah says, “With all due respect, Mr. Hanson, I completely disagree with you.”

The phrase “with all due (due) respect,” is used when one strongly disagrees with another person, but wants to say it so it is respectful - to say it as nicely as possible so that you are not impolite.

If you disagree with someone, especially who is higher in the organization than you are - your boss, for example - you might want to say “with all due respect” before explaining why you disagree with him or her.

Hannah says that she completely disagrees with Chris.

To “completely disagree” with someone means not to agree with someone at all, or to very strongly disagree with someone.

If your friend, for example, says that cats are the best pets, you may say, “I completely disagree with you, because dogs are much better pets.”

Or fish! Hannah says, “I understand your concern, but….”

The phrase “to understand someone's concern, but….” is used to show that one understands what the other person is worried about, but that you disagree with it.

It's a polite way to show that you have heard and understood another person's concern; you've thought about it, but still disagree with it.

For example, a wife might be worried that going to Hawaii is too expensive for a vacation, and her husband may say, “I understand your concern, but I think we should go on a nice vacation.”

Next Hannah says that in her experience the product characteristics of color and design pale in comparison next to “affordability” and “ease of use.”