If shark bites are installed properly they won't go anywhere. I've used them extensively across many of my TT's etc and never had a single issue. They are a god send when working in tight spaces etc. I carry a variety of fittings with me just in case.
2015 F-350 SRW 6.7 PSD
2014 Crusader 295RST
1 Fantastic DW
1 Amazing DD
1 Beagle that will be missed (RIP Zeus)