Customisation in different OS.

User: "I need a bronze statue of a mermaid!"

Linux: "Here you have a bronze cube 1x1x1 m and a piston"

Gentoo: "Here are you copper, lead, and domain stove"

FreeBSD: "Here is a circle and helmet with a light bulb. Mine with copper - on the other side"

Ubuntu: "This is a statue of a mermaid"
User: "But here is only the tail!"
Ubuntu: "Please enter apt-get install body of a mermaid, apt-get install head of a mermaid, apt-get install hands of a mermaid..."

MacOS: "Here are beautiful naked girls"
The user: "Oh you! Can you touch it?"
MacOS: "Pay 200 euros and activate the "Selling Naked Girls" feature

Windows: "No I think – you definitely need a cast iron statue of Chapaev..."