Once hit in crash, vulnerable

• At risk, prior to a breakthrough?
• About to take the plunge perhaps, mixing nicotine with heroin
• Nicotine misused outside hospital in a risky location
• Destroyed nicotine, protecting hearts at risk

Wiktionary Word definitions in Wiktionary
a. (context idiomatic English) In a dangerous, hazardous, or delicate situation; at risk.

Wikipedia Word definitions in Wikipedia
On Thin Ice may refer to: On Thin Ice , an improvisational comedy group from Harvard On Thin Ice (TV series) , a documentary covering a race across Antarctica to reach the South Pole "On Thin Ice", the final episode of the BBC nature documentary Frozen ...