Strap his/hers arms and legs down so they can't reach the keyboard and/or power switch and/or reset switch.
desktop
Blitz3D Forums/Blitz3D Programming/desktopThe forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.