interesting test drive

[RepSpec]

hey all, i wasnt sure where to put this, i suppose a mod will sort it out.

i took a BA mk2 wagon, dedicated lpg, out for a test drive today. private sale. the car was imacculate, extremely clean, fully serviced by ford for its whole life. car is at its second owner. they are selling it because his wife says its too big for her to drive.

taking it for a drive, its so smooth, did everything properly until i decided to stick my boot to the floor. went hard for a second, then started to run like poo, then when i pulled over in the emergency lane it stalled.
my bro, me and the owner all looking stunned got out and after inspection and trying to get started again we found the seal for the gas out of the converter had split, spraying gas everywhere.

the thing is, i was really impressed by the car, nothing else close in price range/kilometers and condition. if the hose hadnt split i would have put a deposit on it. he is getting it fixed 2morrow(it wouldnt start so i know it will be fixed) and hopefully will ring when its fixed (i asked him too)

question (eventually lol) should i be worried, or is it just pure fluke that it died on me like it did.
im still keen on the car, but would like your input.