Staying groovy had nothing to do with being cool. It was an expression used by small recon units and sniper teams in hostile terrain. They would tell one another to stay groovy when the danger level was so insanely high they popped amphetamines to stay awake and ready to rock twenty-four/seven, because anything less would get them all killed. Stay groovy; take your pill. Stay groovy; safety off, finger on. Stay groovy; welcome to hell. Stone had left a warning within his message, and Pike wondered why.