Blue Card showed in Indoor Soccer

How many time are you listening players asking for a blue card?
This is a common word in indoor soccer: "blue card!", "show a blue!", "that's for blue", etc.
However, we must to remember that not all fouls are considered for show a blue card.
The simple rule is that blue card is showed when a player is committing any of these offeenses:

• (a) Kicks or attempts to kick an opponent;
• (b) Trips an opponent, i.