I do not own Yu-gi-oh and this is just a random thing i thought of. I know it is crap but this what i do when bored. Please read and review
20 ways to annoy Seto Kaiba
Obviously kidnap Mokuba
Leave Yugi Motto in a room with him.
Leave all of Yugi's friends in a room with him
Sing the I know a song that gets on your nerves song LOL
Beat him in a duel
Lock him in a room with random things with his brother who is on a sugar high
Mokuba on a sugar high
Listing to me as in The keeper of lone wolfs gossip for the entire world
Being left to baby site a young child.
Read bed time stories to Mokuba
Put him in a repeated duel with the Pharaoh/ Yugi
Make him watch a repeat of him losing to the pharaoh constantly.
Take all of his trench coats.
Steal of all his blue eyes cards HEHEHE!
Trash his mansion
Lock him in a room with Pegasus
Make him watch the worse and most annoying Disney films
Beat him at every game ever made
Make him play with Barbies
Be smarter than he is.