They've called because their pets are unwell, their DVD is broken, they've forgotten how to use their mobile phone, or maybe they are coming out of hospital and they want someone to be there.
ペットの体調が悪いとか DVDが壊れたとか 携帯の使い方を忘れたとか 実際に 病院帰りで 迎えに来て欲しいとかです