today's English chatting:what I forgot to do will make people what? i think ''it will make peoplefeel lt's a pity''

everytime i don't carry camera or spotting scope (i think maybe my backage will be much light)
when going bird wating with birs group members,I always see somerare species.

because i am always the ONLY one who 'll carry these equippments, people with me are unable to see these birds clearly, so feel it's a PITY~~~

reminds me of Murphy's law：If anything can go wrong, it will~~haha