FELLOW Major winner Adam Scott could sympathize with World No.

1 Rory McIlroy who is staring at a fine after hurling a 4-iron into the water in digust on the second day of the WGC - Cadillac Championship at Trump Doral.

McIlroy was playing his second shot at the par five eighth hole that found the water guarding the green.

Then to the shock of all, the four-time Major winner just let fly a state-of-the art $200 (£135/Euro 184) Nike Vapor iron into one of the many alligator-infested lakes on the 'Blue Monster' layout.

McIlroy took a penalty drop on route to a bogey '6' but was still inside the tied for 13th near the end of his round after carding a 70.

The incident immediately rekindled memories of the late and fellow US Open winner 'Terrible Tempered' Tommy Bolt who once threw a driver into a hazard, and also in Miami, so deep that it could not be retrived.

In 1957, the PGA Tour adopted the "Tommy Bolt rule" prohibiting the throwing of clubs. The day after it was passed, Bolt tossed a putter because he wanted to be the first one fined for breaking "his" rule.

For McIlroy, it was the second time in his second round McIlroy had found the water while he also put a ball into the drink at 18 a day earlier.

Within minutes of the incident European Tour Chief Referee, Andy McFee advised that under European Tour rules McIlroy would be fined but given this week's $US 9.25m event is in the US, any breach of behaviour is administered by the PGA Tour.

But then the PGA Tour has a policy, and as we saw recently with Dustin Johnson, of not officially revealing whether a player has been fined, suspended or whatever.

The last time McIlroy hurled anything on a golf course was his winning golf ball into the crowd in capturing the recent Dubai Desert Classic.

However McIlroy threw two clubs and breaking one during a frustrating final round 76 in the 2013 US Open at Merion in Pennsylvania.

And Scott, who posted a four under par 68 to move to the clubhouse lead on six under par, shared McIlroy's sense of frustration.

"I can understand Rory throwing a club as it's the most frustrating game ever," said Scott.

"So I am not surprised to learn he's thrown a club as we've all done it whether your a pro or just playing at your local club on a weekend.

"It's shocking when you see it from a leading Tour player but it's a brutal game and tell me who hasn't thrown a club.

"I threw one back home in Australia about four years ago just playing a social round and I wasn't even playing in a match.

"But then I have to say it felt good. Though I didn't throw it forward as Tommy Bolt use to recommend and actually made the mistake of throwing it backwards (smiling)."

This lastest incident, and clearly not an example for McIlroy's ever-growing number of younger fans, continues a frustrating two weeks for the 25-year old at the start of the PGA Tour's 'Florida Swing'.

McIlroy remarked a week ago he was 'pissed off' to have missed the cut in the Honda Classic while on Thursday he agreed to being 'cheesed off' in posting a round of 73 that included an outward half of 40.

Scot Marc Warren was delighted to birdie his penultimate hole in a round despite a round of 75 for a 36-hole four over par tally.

"Overall it's best a bit up-and-down so far as my ball-striking these two rounds and I've just been a bit ropey and not on song," said Warren.

"It's just such a tough golf course where you have to scramble nearly every hole and that's what I've done for much of the time but then four over is a pretty fair score.

"And I have to say it is one of the toughest golf courses I have played for a long time as there is no respite out there, at all.

Fellow Scot Stephen Gallacher regrouped from his opening 84 to be level par for his round in recording a gutsy 72 to remain at 12-over par in the no cut event.