It has always irked me, it still irks me, when a "tiny-body" decides "help" a "heavy-body" climb. Invariably, this is what happens:
The "tiny-body" gets in the way going downslope, causing the heavy-body to have to work the brakes, sit-up-catch-air, to slow down to keep from running over the tiny-body getting in the way. This results in a large loss of heavy-body momentum which would have been better used to help with the beginning of the next climb. There is always, immediately, the next climb in these parts. It also results in the heavy-body expending huge amounts of mental energy to keep from running over the in-the-way-tiny-body.
During the short, flattish part between the above-described-downslope and the next upslope, the tiny-body continues to "help" by slowing the pace from the 20 mph that had finally been "settled-for" on the previous downslope (instead of the gravity-natural 25+ mph that should have been achieved), down to around 14 mph at the bottom of that next climb. The tiny-body has continued to be oblivious to the fact that they are making things much, much worse for their heavy-body "friend".
The tiny-body has slowed the pace to 14 mph because they cannot conceive that anyone would climb any differently than they do. And how do they climb? Well, since they weigh next to nothing, it is no work at all for "them" to climb - after typically having thrown away all their momentum - by STOMPING their way up the hill.
The tiny-body blithely expects that everyone else wants to climb in that same inefficient mode. So . . . they get in the way at the bottom of the climb, force the heavy-body to throw away the remainder of their carefully conserved momentum from the previous downslope, and expect the heavy-body to STOMP their way up the hill.
The tiny-body never understands why the heavy-body labors up what has now become a small mountain instead of the minor bump it would have been if the speed at the bottom would have been the propper, gravity-natural 25 mph.
I will skip the part about the tiny-body that, having STOMPED up the climbed, has worn out their quads, and cannot ride at anything faster than 13 mph for the next mile despite being on the flat of the top of the plain. I will skip the comparison to the fact that the heavy-body, if they had been allowed to spin up the climb in their normal way, would have begun to recover cadence and/or gears as the slope diminished, and would have returned to 18 to 20 mph with nearly fresh quads while the tiny-body was in lactic hell. I will skip that.
Instead, I will draw attention to the tiny-body's habit of, upon reaching the crest and the following flat, continues to "help" the heavy-body by riding along at 11 mph, "waiting" for the heavy-body to catch back up and "hook onto" their wheel. Invariably, the tiny-body fails to comprehend that as the heavy-body rider approaches with its speed increasing as the spinning action refreshes their legs, the tiny-body too should increase their speed BEFORE the heavy-body arrives so that the heavy-body attaches themself seemlessly to the tiny-body's wheel.
Oh, no. The tiny-body continues to "help" by expecting their "friend" (?) to s-l-o-w back down to 11 mph to line up on the tiny-body wheel, and then, and only then, the tiny-body begins to pedal in ernest. Once again the heavy-body has had to grab brakes, expend mental energy, waste momentum, inflict unnecessary work and pain on their legs to accomodate their tiny-body ENEMY with whom they NEVER want to ride again !!!