Standard net tools are a few irrevocable abilities that each Netizen has access to by design - things a server cannot override:

• exiting from a Fragment, server or network, or negotiating Following
• altering one's default avatar
• setting one's metadata preference
• either blocking or receiving private messages one is the recipient of
• either blocking or receiving global messages one is the recipient of
• sending private messages (as long as the recipient has not blocked them)
• defining one's sensory input limits
• disconnecting from one's sensory inputs (either individually or in full)
• respawning on avatar death (generally automatic)
• pausing oneself for a certain amount of time or running at a slower pace than normal (Denizen-only)
• logging out entirely (Citizen-only)

Entrapment is in part as scary as it is since it not only affects web access control but also the supposedly irrevocable Netizen-bound privileges.