Blows up hotel robot

Something moved ahead of him, and he saw a squat, thickset shape roll out
from a shadowed alcove. It was an ornate machine, plated with steel
and sheathed with ceramic detailing—an elegant hotel service robot modeled
on some arcane, pre-twentieth-century artistic ideal of what an
automaton should be. It moved on fat gray tires, turning like a tall tank. A
speaker grille presented itself to Saxon and spoke in Russian, then
Farsi and finally English. "This area is off-limits to guests," it declared.
"Proceed no farther."

[...]

Saxon's free hand closed around a cylindrical object on his gear vest and he
tugged it free with a jerk of the wrist. By feel alone, he found the
primer tab and pulled it. The weapon buzzed in response and Saxon threw it
hard, diving for cover behind a damaged door.
The Type 4 Frag-k grenade clanked off the casing of the robot and bounced
to the carpet beneath it; a moment later the explosive core
detonated, blasting the machine off its supports and into a smoking heap.

- Deus Ex: Icarus Effect, Chapter 4 pgs. 118-119