An F-4 pilot requested clearance to take off from a joint military/civilian airport, but due to the amount of civilian traffic, the ATC told him he’d have to hold.
After a repeated impatient request by the F-4 to take-off the ATC suggested that if the pilot could reach 14,000ft within half the runway length he could take off; otherwise, he would have to hold.
To the ATC’s surprise, the F-4 pilot acknowledged the tower and began to roll.
At the halfway mark the F-4 went vertically up until he reached 14,000ft, then leveled off.
The ATC had no option than to hand the pilot over to departures and wish him a nice day since he’d met the conditions laid down.