0 0 0Act 4 Mission 1 on Hard difficulty. When you see a gray robot that can create barricade shields, damage it enough to throw a grenade at tit to destroy it.
0 0 0Act 2-1: River - Right at the start of this mission you will encounter a number of Gorgie-USN and Chicane's. Simply boost ahead of the AI and throw a Grenade into the group. You'll almost certainly unlock Robots Tend to Blow Up at the same time.