Say the other person is BBW, and say you're trekking, then BBW will come up to you and crib, and I'm not using the word crib lightly, he/she will crib not only on his/her behalf but crib enough to make you think that there's nothing left to look forward to in life. And all this in an environment which is already demoralizing and demotivating. Soon you'll be naive enough to think, God, everyone feels this way, I give up! And next thing you know, WHAM!, BBW's smiling at you benignly from Mount Everest and lending you a helping hand to come see the view. And you? You're just sitting there torn between regretting your lack of carpe-diemness, wondering over the unfairness of it all and then wondering whether you really care about climbing Everest.
Such naivete. Sheesh. Oh and to all my dear friends in this heartwarming rat race - you're welcome.