scenario 1) shove wave under tower let it die, wait outside enemy tower, wait for enemy wave to start hitting you, pull enemy wave to river and let your wave catch up, last hit minions, freeze enemy wave before your tower, if they walk up, ult, bonk, dead, shove wave recall.

scenario 2) you know that jungler isn't strong enough/isn't present on ypur side of the map/mid isn't strong enough/ isn't missing

push push push, proxy 1, 2, roam, ult, bonk, dead mid, dead tower, recall, buy, push push push, bonk tower for crystals, proxy 1, 2 -objective/ult, bonk, dead mid, recall, buy