1997 : I used a text-to-email gateway and hooked it up to procmail doing a sleep 300 followed by an ATDT to my cell phone. Whenever I wanted to get out of some

1997 : I used a text-to-email gateway and hooked it up to procmail doing a sleep 300 followed by an ATDT to my cell phone. Whenever I wanted to get out of somewhere, I went to the bathroom and texted to the gateway. 5 minutes later my cellphone rang with a “very important call” :)