Elegant but can't help but laugh

Harry Hart: [Grabs a fountain pen from the wall] Now, I've had a lot of fun with this. One of our finest examples of chemical engineering. Poison. Harmless when ingested. But at a time, convenient to you...

[Pulls pen clip outward]

Harry Hart: It can be remotely activated. Primed.

[Pushes clip back]

Harry Hart: Lethal.

[Eggsy looks at the gold cigarette lighters on the wall]

Gary 'Eggsy' Unwin: And what about these? What do these do? Electrocute you?

Harry Hart: Don't be ridiculous. It's a hand grenade.

Gary 'Eggsy' Unwin: Shut up.

Harry Hart: If you want to electrocute someone, you'll need a signet ring.

[Grabs a ring from the wall]

Harry Hart: A gentleman traditionally wears the signet on his left hand, but a Kingsman wears it on whatever hand happens to be dominant. If you touch the contact behind the ring, it delivers 50,000 volts.

Gary 'Eggsy' Unwin: [Pointing at the smartphones and tablets on the opposite wall] And what about them? What makes them so special?

[Eggsy grabs a lighter while Hart is not looking]

Harry Hart: Nothing. That technology is caught up with the spy world.

[Hart and Eggsy head back to the main lobby]

Harry Hart: Put it back, Eggsy.

[Eggsy puts the lighter back]

Kingsman Tailor: Perfect timing. Gentleman's just finished.

[Valentine and Gazelle step out of Fitting Room 1]

Valentine: Mr. DeVere. What a coincidence. You are totally the reason I'm here. When you left my house, I was thirsting for that dope-ass smoking jacket you had on. And since I'm going to Royal Ascot, apparently you need one of these penguin suits. Here I am. What are you doing here?

[Valentine shakes hands with Eggsy]

Valentine: What's up, man? Richmond Valentine.

Harry Hart: This is my new valet. I was just introducing him to my tailor.

Valentine: Another coincidence. So am I.

Harry Hart: Did you have any chance to think further on my proposal?

Valentine: Most definitely. My people will be getting in touch with you very soon. I guarantee it.

Harry Hart: A word of advice: Ascot requires top hat. I might suggest Lock & Co. Hatters, St. James.

Valentine: 'Lox', as in smoked fish?

Harry Hart: As in 'locked up'.

Valentine: Oh. I have trouble understanding you people sometimes. You all talk so funny.