You can go from raising the hopes of an entire fanbase with a 20-point win at home, only to destroy them with a record 52-point disaster seven days later.
You can go from being one of the biggest defensive improvers – the kind that completely nullify the Warriors' jack-in-the-box duo of Shaun Johnson and Sam Tomkins – in one game, to being routed by a record margin the next.
You can also go from being the 80-minute workhorse and immediate Holden NRL Fantasy stud you dreamt your club debut would make you out to be, to having one of the worst experiences of your young rugby league career the next.
"It was probably one of the hardest things I've gone through in footy, I was a bit embarrassed to be honest," Eels hooker Nathan Peats said on Monday of Parramatta's loss to the Roosters, having been sidelined for the clash.
The former South Sydney rake was forced to miss Saturday's 56-4 debacle after the club imposed a four-game ban (three of which are suspended) and $10,000 fine (half of which is suspended) over an off-season incident in Bali last October.
Peats declined to comment on the punishment but expressed his displeasure at the rugby league player's cardinal sin – letting your teammates down.
"To be honest, I was just disappointed I wasn't out there. No NRL team should get beat by that much considering how good we played the first week," he said.
"The first half we stayed strong and stuck with it and then I don't know what happened. I can't explain [it]. We didn't have a good second half, but there's always next week and it starts today.
"I'm not going to comment on what I got punished with. I was disappointed to miss out on the game. It wasn't the punishment I was upset with, it was more letting the boys down and not being out there, you know what I mean? I'd do anything for those lads. Not to play was the hardest thing, not the punishment itself."
Peats' absence forced Brad Arthur into utilising inexperienced second-rower Kenny Edwards at hooker last week, exposing Parramatta's lack of depth at hooker.
With only young dummy-half Kaysa Pritchard on its roster, the Eels will be relying on Peats to bash out 80-minutes for all of 2014.
Asked how he would make it up to his team-mates, Peats said: " Hopefully a good 80-minute performance this week.
"I thought I went alright round one against the Warriors and it's the reason I come to Parra and got an early release from Souths – to play long minutes and play some consistent footy.
"Hopefully I can repay the boys back this week. It's a big challenge, coming up against grand finalists Manly but like I said, after last week's performance if we can bounce back and play how we played round one, then hopefully we can have a decent game."