The main one is "wind!" I am tired of being battered by the relentless wind. I don't enjoy a ride, even a group ride, when having to fight the whole way (or, precisely, half the way if it's out-and-back) in a really low gear, going oh-so-much slower given the effort you are making. Naturally, I am talking about casual rides, not races. For a race or tt, I might whine a bit, but suck it up since everyone else is in the same boat.
The other one is "cold" in association with wind. The other day I bagged it when I hit the stiff north wind. I did the same today. Maybe last month I might have dragged my body downtown and joined the Flyers and hidden behind some big guy. But I've had it and will wait for better weather. Judging by the forecast, that might be next week, not this one. Today I spent lots of minutes stretching, doing abdominals, yoga, and re-acquainting myself to my rollers.
Back before I had a stationary trainer, while training for my coast-to-coast ride, I spent a lot of time on the rollers. I still can't ride with no hands, but after a minute or so of warming up today, I keep the wheel right in the middle as I went up and down the cadence. Rollers make you a better peddler because if you aren't even on both sides, your wheel moves to the side. A ten-inch slide might sling you off the rollers.
Sliding off the rollers has never happened to me. However, I have a short tale: I first set the rollers up in the garage, with a wall on my right. That would prevent my going right and all I had to do was protect against going left. All went well the first couple of times and I was getting the hang of it. So much so I let my brain wander. At the end of the workout I was ready to quit so I put on the brakes. Duh! Too Late, my weight listed left and I was clipped in too tightly. Big bruise on the left hip (and ego). Thereafter, the rollers were set up next to my Mazda pick-up where I could actually grab something. I have never touched the brakes again on the rollers.