There's nothing wrong with a Sabre that's not "wrong" with every other high performance single-pilot aircraft out there -- they're not terribly forgiving of anything.
I don't see any mention of the ice cream parlor incident, but this is what I see on the NTSB database under F-86:
http://www.ntsb.gov/ntsb/brief.asp?ev_id=52427&key=0
3/23/1976 MOJAVE, CA CANADAIR F-86 N8544
MISJUDGED DISTANCE,SPEED,AND ALTITUDE- UNDERSHOOT, GEAR COLLAPSED
http://www.ntsb.gov/ntsb/brief.asp?ev_id=55161&key=09/27/1976 FT LAUDERDALE, FL CANADAIR F-86E N8687D Nonfatal
WHEELS-UP LANDED ON FOAMED RUNWAY NOSE GR DOWN LINE RUPTURED
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 0697&key=14/25/1987 SHAFTER, CA NORTH AMERICAN F-86F N86Z Fatal(1)
TURBINE ASSEMBLY..FAILURE,TOTAL- THE EMERGENCY HYDRAULIC SYSTEM WAS NOT BEING USED. FURTHERMORE, THE EJECTION SEAT WAS DISABLED AND THE PILOT WAS NOT WEARING A PARACHUTE.
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 2416&key=15/2/1993 SANTA ANA, CA CANADAIR F-86E MK.6 N3842J Fatal(1)
THE PILOT'S INADEQUATE PLANNING/DECISION CONCERNING PERFORMANCE OF AN AEROBATIC MANEUVER, AND HIS FAILURE TO MAINTAIN ADEQUATE ALTITUDE/CLEARANCE ABOVE THE RUNWAY DURING RECOVERY FROM THE MANEUVER.
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 6915&key=110/6/1996 SALINAS, CA North American F-86 N186SE Nonfatal
During rollout, the pilot noted a hydraulic brake system failure. Engine driven #3 system auxiliary hydraulic boost pump had failed internally.
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 8108&key=16/1/1997 BROOMFIELD, CO Canadair F-86E MK.6 N86EX Fatal(1)
Inadequate planning and decision making by the pilot in starting the aerobatic maneuver at an insufficient altitude to successfully complete the maneuver.
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 9084&key=16/19/1999 MOUNT HOLLY, NJ Canadair F-86E N186JC Fatal(1)
A warning in the Aircraft Operating Instructions stated that, "Where flight is necessary with low fuel state pilot should avoid nose high attitudes."
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 5436&key=111/4/2002 San Isidro, Dominican Republic Canadair F-86 N30CJ Fatal(1)
The airplane was in a slight climb attitude, wings level, at an estimated airspeed of 250 knots, when a "large ball of fire" was observed coming from the aircraft tailpipe. The airplane touched down in controlled flight on a marshy area, no attempts to eject were noted.
I understand that Zeuschal's engine failure may have been induced due to overtemps on starting using auto fuel- but that is hearsay.