The answer to 'GFCI outlet hot to touch' is that a GFCI (ground fault circuit interrupter) outlet that is hot to the touch is a sign of an electrical issue that requires immediate attention. This could be caused by a wiring problem, a faulty GFCI, or a short circuit in the electrical system.
If a GFCI outlet is hot to the touch, you should immediately shut off power to the outlet and unplug any devices. Do not attempt to reset the GFCI, as this could be dangerous. Instead, call a licensed electrician to diagnose and repair the problem. GFCI outlets are designed to detect ground faults and shut off power to prevent electric shock, so a hot GFCI outlet indicates a serious electrical issue that should not be ignored.