Improvised airway - Simply reach in and pull the lower jaw forward. Turning the victim on his side (provided there are no cervical issues!) is also recommended.

Quote from Wilkerson's Medicine for Mountaineering, 3d ed., p.49

"insert a large safety pin through the meaty part of the tongue and hold the tongue forward by taping the pin to the chin or anchoring it in a similar manner. Although this technique sounds and appears brutal, it is simple, highly effective, and produces no permanent damage."

Emergency medicine is often not rated PG....