OK ..this probably won't do my reputation any good but it's worth a laugh.
Had to change a thermostat on a Honda VFR800 Vtec, this involved removing lots of bodywork, airbox, radiators and injector bodies ( big job ) ..!
Anyway ... The injector bodies were a real pain in the arse and needed a lots of leverage to remove them but reassembly needed a different tactic, See pic ...