Slip away

I'm going to try to slip away from work early, if I can.

Source: wiktionary

1906, Edith Nesbit, The Railway Children, Chapter 4: The engine-burglar, But when Bobbie crept down later to bring up her presents--for she felt she really could not be separated from them all night--Mother was not writing, but leaning her head on her arms and her arms on the table. I think it was rather good of Bobbie to slip quietly away, saying over and over, "She doesn't want me to know she's unhappy, and I won't know; I won't know." But it made a sad end to the birthday.

Source: wiktionary

When I'm tired and thinking cold I hide in my music, forget the day And dream of a girl I used to know I closed my eyes and she slipped away She slipped away

Source: wiktionary

He picked up his own phone, shunned limos and preferred to walk if possible (sciatica later caused him to use a wheelchair) – as, for example, on the day after his election when he slipped away on foot to collect his suitcase and settle the bill at the modest pensione where he had been booked in before the conclave began.

Source: wiktionary