The Happy Prince got off the mark at the second attempt in the National Student Raceday Maiden at Limerick - but not before giving his backers a fright.
Aidan O'Brien's charge was sent off the 4/9 favourite and travelled sweetly, moving into the lead just after the home turn, but when Joseph O'Brien asked for maximum effort, he veered violently to the left, giving Gussy Goose another bite of the cherry.
O'Brien junior was able to get the colt back on an even keel in time, though, eventually coming out on top by a length and a quarter.
"He's a nice horse who had a nice run last year. He has plenty speed and when I gave him a crack he had a little look and is still quite green," said Joseph O'Brien.
"I was never worried though and he had plenty in hand."
Corail produced an excellent effort on her reappearance to land the Irish Stallion Farms EBF Median Auction Fillies Maiden.
Dermot Weld's Mulkeyya was sent off the 1/3 favourite and was travelling best on the home turn, but Corail (3/1) swept into the lead under Chris Hayes and maintained her advantage all the way to the line, scoring by a length and a quarter.
"I had this race in mind from the turn of the year. Obviously I was hugely worried about Mr Weld's filly though," acknowledged Deegan.
"She showed plenty last year and I always thought she'd be a better three-year-old.
"She didn't grow as much as a I thought, but she did grow some and strengthen.
"I'll speak to James Kelly and Lady O'Reilly but the Guineas Trial could be her next race.
"She's a smart filly and she'd be better with a step up in trip. Mentally she'll mature more."