Self-insurance describes a situation in which a person does not take out any third party insurance. The essence of the concept is that a business that is liable for some risk, such as health costs, chooses to carry the risk itself and not take out insurance through an insurance company.
Aim Assist is an option in the Game Options that helps players to aim by slightly locking on to enemies. When a player positions the crosshair over an enemy the Aim Assist helps keep it in place by automatically adjusting the aim as the player and enemy move, commonly known as Sticky Aim.
AOL Instant Messenger (AIM) is one of the most popular IM programs. It's also one of the oldest. The first version of AIM was released in 1997, one year after the release of ICQ, the very first publicly available IM client. Now AIM boasts 33 million unique users every month. During peak hours, over 6 million people are logged on to AIM at the same time [source: AOL].