That'd probably be why they don't use cellphones very well.
Two demons now have accidentally taken their picture when touching my cellphone.
First, it was the Spectre of Death:
|The dark, shrouded visage of the Spectre of Death (like El Muerte, but worse, because at least El Muerte will kill you eventually)|
Second, it was the demon who attacked me at the law library:
In the future, it and another demon actually rendered me unconscious on the otherwise empty third floor of the Santa Clara County Law Library, and then examined my MacBook Air for more material it apparently thought I "just shouldn't have."
You can see him briefly in Demons Attack at Law Library; it shows the side of his face and one glowing eyeball.